message stringlengths 2 11.9k | message_type stringclasses 2 values | message_id int64 0 1 | conversation_id int64 137 108k | cluster float64 18 18 | __index_level_0__ int64 274 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It is important to use strong passwords to make the Internet more secure. At the same time, it is very important not to reuse the same password. No matter how strong your password is, if the plaintext is leaked in one place, it will be very easy to break. Of course, if all applications hash passwords and use SALT properly, such damage will not occur even if leaked, but there are still applications that store passwords in clear text.
Well, the contest is about to begin. I have to register a team account ...
problem
A string representing the password is given. Check if the character string meets all of the following conditions, and if it meets all of the following conditions, output "VALID", and if there is an item that does not meet even one, output "INVALID".
* String length is 6 or more
* Contains one or more numbers
* Contains one or more uppercase letters
* Contains one or more lowercase letters
input
A string representing the password is given on one line.
output
Print "VALID" if the password string meets all the conditions in question, and "INVALID" if there are conditions that do not.
Constraint
* The password string must be between 1 and 20 characters.
* Password string contains only uppercase letters, lowercase letters, and numbers
Input / output example
Input 1
password
Output 1
INVALID
It is a password that is widely used all over the world.
Input 2
AizuCamp2013
Output 2
VALID
Great password.
Input 3
1234
Output 3
INVALID
Widely used as a PIN.
Input 4
NaBiO3
Output 4
VALID
It is barely 6 characters or more.
Example
Input
password
Output
INVALID
Submitted Solution:
```
num = list("0123456789")
large = list("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
small = list("abcdefghijklmnopqrstuvwxyz")
S = input()
if len(S) < 6:
print("INVALID")
exit()
flag_n, flag_l, flag_s = False, False, False
for s in S:
if s in num:
flag_n = True
elif s in large:
flag_l = True
elif s in small:
flag_s = True
if flag_n and flag_l and flag_s:
print("VALID")
else:
print("INVALID")
``` | instruction | 0 | 70,708 | 18 | 141,416 |
Yes | output | 1 | 70,708 | 18 | 141,417 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It is important to use strong passwords to make the Internet more secure. At the same time, it is very important not to reuse the same password. No matter how strong your password is, if the plaintext is leaked in one place, it will be very easy to break. Of course, if all applications hash passwords and use SALT properly, such damage will not occur even if leaked, but there are still applications that store passwords in clear text.
Well, the contest is about to begin. I have to register a team account ...
problem
A string representing the password is given. Check if the character string meets all of the following conditions, and if it meets all of the following conditions, output "VALID", and if there is an item that does not meet even one, output "INVALID".
* String length is 6 or more
* Contains one or more numbers
* Contains one or more uppercase letters
* Contains one or more lowercase letters
input
A string representing the password is given on one line.
output
Print "VALID" if the password string meets all the conditions in question, and "INVALID" if there are conditions that do not.
Constraint
* The password string must be between 1 and 20 characters.
* Password string contains only uppercase letters, lowercase letters, and numbers
Input / output example
Input 1
password
Output 1
INVALID
It is a password that is widely used all over the world.
Input 2
AizuCamp2013
Output 2
VALID
Great password.
Input 3
1234
Output 3
INVALID
Widely used as a PIN.
Input 4
NaBiO3
Output 4
VALID
It is barely 6 characters or more.
Example
Input
password
Output
INVALID
Submitted Solution:
```
s=input()
print('INVALID' if s.isdigit() and s.islower() and s.isupper() or len(s)<6 else 'VALID')
``` | instruction | 0 | 70,709 | 18 | 141,418 |
No | output | 1 | 70,709 | 18 | 141,419 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It is important to use strong passwords to make the Internet more secure. At the same time, it is very important not to reuse the same password. No matter how strong your password is, if the plaintext is leaked in one place, it will be very easy to break. Of course, if all applications hash passwords and use SALT properly, such damage will not occur even if leaked, but there are still applications that store passwords in clear text.
Well, the contest is about to begin. I have to register a team account ...
problem
A string representing the password is given. Check if the character string meets all of the following conditions, and if it meets all of the following conditions, output "VALID", and if there is an item that does not meet even one, output "INVALID".
* String length is 6 or more
* Contains one or more numbers
* Contains one or more uppercase letters
* Contains one or more lowercase letters
input
A string representing the password is given on one line.
output
Print "VALID" if the password string meets all the conditions in question, and "INVALID" if there are conditions that do not.
Constraint
* The password string must be between 1 and 20 characters.
* Password string contains only uppercase letters, lowercase letters, and numbers
Input / output example
Input 1
password
Output 1
INVALID
It is a password that is widely used all over the world.
Input 2
AizuCamp2013
Output 2
VALID
Great password.
Input 3
1234
Output 3
INVALID
Widely used as a PIN.
Input 4
NaBiO3
Output 4
VALID
It is barely 6 characters or more.
Example
Input
password
Output
INVALID
Submitted Solution:
```
s=input()
print('INVALID' if s.isdigit() or s.islower() or s.isupper() or len(s)<6 else 'VALID')
``` | instruction | 0 | 70,710 | 18 | 141,420 |
No | output | 1 | 70,710 | 18 | 141,421 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It is important to use strong passwords to make the Internet more secure. At the same time, it is very important not to reuse the same password. No matter how strong your password is, if the plaintext is leaked in one place, it will be very easy to break. Of course, if all applications hash passwords and use SALT properly, such damage will not occur even if leaked, but there are still applications that store passwords in clear text.
Well, the contest is about to begin. I have to register a team account ...
problem
A string representing the password is given. Check if the character string meets all of the following conditions, and if it meets all of the following conditions, output "VALID", and if there is an item that does not meet even one, output "INVALID".
* String length is 6 or more
* Contains one or more numbers
* Contains one or more uppercase letters
* Contains one or more lowercase letters
input
A string representing the password is given on one line.
output
Print "VALID" if the password string meets all the conditions in question, and "INVALID" if there are conditions that do not.
Constraint
* The password string must be between 1 and 20 characters.
* Password string contains only uppercase letters, lowercase letters, and numbers
Input / output example
Input 1
password
Output 1
INVALID
It is a password that is widely used all over the world.
Input 2
AizuCamp2013
Output 2
VALID
Great password.
Input 3
1234
Output 3
INVALID
Widely used as a PIN.
Input 4
NaBiO3
Output 4
VALID
It is barely 6 characters or more.
Example
Input
password
Output
INVALID
Submitted Solution:
```
s=input()
print('VALID' if s.isdigit() and s.islower() and s.isupper() and len(s)>5 else 'INVALID')
``` | instruction | 0 | 70,711 | 18 | 141,422 |
No | output | 1 | 70,711 | 18 | 141,423 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
def bhaago():
print('NO')
exit(0)
def type1(s):
if not (len(s) >= 1 and len(s) <=16):
bhaago()
for i in s:
if not (i.isalpha() or i.isdigit() or i == '_'):
bhaago()
s = input()
if not(s[0].isalpha() or s[0].isdigit() or s[0] == '_'):
bhaago()
t1 = s.split('@')
if len(t1) != 2:
bhaago()
username = t1[0]
type1(username)
t2 = t1[1].split('/')
if len(t2) > 2:
bhaago()
hostname = t2[0]
if not (len(hostname) >= 1 and len(hostname) <=32):
bhaago()
for sep in hostname.split('.'):
type1(sep)
if len(t2) == 1:
print('YES')
exit(0)
resource = t2[1]
type1(resource)
print('YES')
``` | instruction | 0 | 71,033 | 18 | 142,066 |
Yes | output | 1 | 71,033 | 18 | 142,067 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
def res():
s=list(input().split("@"))
if(len(s)>2):
print("NO")
return
if(len(s[0])>16 or len(s[0])<1):
print("NO")
return
for i in s[0]:
#print(i)
if(97<=ord(i)<=122 or 65<=ord(i)<=91 or ord(i)==95 or 48<=ord(i)<=57):
continue
else:
print("NO")
return
#print("hi")
a=list(s[1].split("/"))
if(len(a[0])>32 or len(a[0])<1):
print("NO")
return
k=a[0].split(".")
for i in range(len(k)):
if(len(k[i])>16 or len(k[i])<1):
print("NO")
return
for i in a[0]:
if(97<=ord(i)<=122 or 65<=ord(i)<=91 or ord(i)==46 or ord(i)==95 or 48<=ord(i)<=57):
continue
else:
print("NO")
return
for i in range(1,len(a)):
m=a[i]
if(len(m)>16 or len(m)<1):
print("NO")
return
for i in m:
if(97<=ord(i)<=122 or 65<=ord(i)<=91 or ord(i)==95 or 48<=ord(i)<=57):
continue
else:
print("NO")
return
print("YES")
res()
``` | instruction | 0 | 71,034 | 18 | 142,068 |
Yes | output | 1 | 71,034 | 18 | 142,069 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
import string
def main(a):
allowed = string.ascii_letters + string.digits + '_'
limit = 0
limit_2 = 0
flag = 0
for character in a:
if flag == 0:
if character == '@':
if limit == 0:
return 'NO'
flag = 1
limit = 0
else:
if character not in allowed:
return 'NO'
limit += 1
if limit == 17:
return 'NO'
else:
if flag == 1:
if character == '/':
if limit == 0:
return 'NO'
if limit_2 == 0:
return 'NO'
flag = 2
limit = 0
limit_2 = 0
else:
if character == '.':
if limit == 0:
return 'NO'
limit = 0
limit_2 += 1
if limit_2 == 33:
return 'NO'
else:
if character not in allowed:
return 'NO'
limit += 1
if limit == 17:
return 'NO'
limit_2 += 1
if limit_2 == 33:
return 'NO'
else:
if character not in allowed:
return 'NO'
limit += 1
if limit == 17:
return 'NO'
if flag == 0:
return 'NO'
if a[len(a) - 1] == '.':
return 'NO'
if a[len(a) - 1] == '/':
return 'NO'
if a[len(a) - 1] == '@':
return 'NO'
return 'YES'
a = input()
print(main(a))
``` | instruction | 0 | 71,035 | 18 | 142,070 |
Yes | output | 1 | 71,035 | 18 | 142,071 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
line = input()
valid = True
status = -1
username = []
hostname = []
resources = []
hasResource = False
ant = 'a'
for e in line:
if not valid:
break
if status == -1:
if e.isalpha() or e.isdigit() or e == '_':
username.append(e)
elif e == '@':
status = 0
else:
valid = False
elif status == 0:
if e.isalpha() or e.isdigit() or e == '_' or e == '.':
if e =='.' and ant == '.':
valid = False
else:
hostname.append(e)
elif e == '/':
hasResource = True
status = 1
else:
valid = False
else:
if e.isalpha() or e.isdigit() or e == '_':
resources.append(e)
else:
valid = False
ant = e
#print(username)
#print(hostname)
#print(resources)
if len(username) < 1 or len(username) > 16:
valid = False
if len(hostname) < 1 or len(hostname) > 32 or hostname[0] == '.' or hostname[-1] == '.':
valid = False
else:
word = (''.join(hostname)).split('.')
for e in word:
if len(e) > 16:
valid = False
if len(resources) > 16:
valid = False
if hasResource and len(resources) < 1:
valid = False
if valid:
print('YES')
else:
print('NO')
``` | instruction | 0 | 71,036 | 18 | 142,072 |
Yes | output | 1 | 71,036 | 18 | 142,073 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
A = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','_','1','2','3','4','5','6','7','8','9','0'}
s = input()
k=0
i = s.find('@')
s1 = s[:i]
j = s.find('/')
if j!=-1:
s2 = s[i+1:j]
else:
s2=s[i+1:]
z=0
s3=''
if j!=-1:
s3 = s[j+1:-1]
cnt=0
if len(s1)<=16 and len(s1)>=1:
for i in range(len(s1)):
if s1[i] not in A:
k+=1
else:
k+=1
p = 0
if len(s2)<=32 and len(s2)>=1:
for i in range(len(s2)):
if s2[i] not in A and s2[i]!='.':
k+=1
else:
if s2[i]!='.':
p+=1
if p>16:
k+=1
else:
p=0
if p==0:
k+=1
else:
k+=1
if len(s3)<=16:
for i in range(len(s3)):
if s3[i] not in A:
k+=1
else:
k+=1
if k==0:
print('YES')
else:
print('NO')
``` | instruction | 0 | 71,037 | 18 | 142,074 |
No | output | 1 | 71,037 | 18 | 142,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
def f():
x = input()
if len(x) < 1 or len(x) > 100:
return 'No'
for i in x:
if ord(i) < 33 or ord(i) > 127:
return 'No'
if len(x[:x.find('@')]) < 1 or len(x[:x.find('@')]) > 16:
return 'No'
for i in x[x.find('@')+1:x.find('/')].split('.'):
if len(i) < 1 or len(i) > 16:
return 'No'
if '/' in x:
for i in x[x.find('/')+1:].split('/'):
if len(i) < 1 or len(i) > 16:
return 'No'
if len(x[x.find('@')+1:]) < 1 or len(x[x.find('@')+1:]) > 16:
return 'No'
return 'Yes'
print(f())
``` | instruction | 0 | 71,038 | 18 | 142,076 |
No | output | 1 | 71,038 | 18 | 142,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
word=input()
asdf=[95]
for i in range(48,58):
asdf.append(i)
for i in range(65,91):
asdf.append(i)
for i in range(97,123):
asdf.append(i)
def f(word):
if len(x) < 1 or len(x) > 100:
return 'NO'
for i in x:
if ord(i) < 33 or ord(i) > 127:
return 'NO'
if len(x[:x.find('@')]) < 1 or len(x[:x.find('@')]) > 16:
return 'NO'
for i in x[:x.find('@')]:
if i not in asdf:
return 'NO'
for i in x[x.find('@')+1:x.find('/')].split('.'):
if len(i) < 1 or len(i) > 16:
return 'NO'
if '/' in x:
for i in x[x.find('/')+1:].split('/'):
if len(i) < 1 or len(i) > 16:
return 'NO'
if len(x[x.find('@')+1:]) < 1 or len(x[x.find('@')+1:x.find('/')]) > 32:
return 'NO'
return 'YES'
``` | instruction | 0 | 71,039 | 18 | 142,078 |
No | output | 1 | 71,039 | 18 | 142,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Jabber ID on the national Berland service «Babber» has a form <username>@<hostname>[/resource], where
* <username> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <username> is between 1 and 16, inclusive.
* <hostname> — is a sequence of word separated by periods (characters «.»), where each word should contain only characters allowed for <username>, the length of each word is between 1 and 16, inclusive. The length of <hostname> is between 1 and 32, inclusive.
* <resource> — is a sequence of Latin letters (lowercase or uppercase), digits or underscores characters «_», the length of <resource> is between 1 and 16, inclusive.
The content of square brackets is optional — it can be present or can be absent.
There are the samples of correct Jabber IDs: mike@codeforces.com, 007@en.codeforces.com/contest.
Your task is to write program which checks if given string is a correct Jabber ID.
Input
The input contains of a single line. The line has the length between 1 and 100 characters, inclusive. Each characters has ASCII-code between 33 and 127, inclusive.
Output
Print YES or NO.
Examples
Input
mike@codeforces.com
Output
YES
Input
john.smith@codeforces.ru/contest.icpc/12
Output
NO
Submitted Solution:
```
import re
if re.compile('(\w){1,16}@(\w{1,16}\.)*\w{1,16}(/\w)*').match(input()) != None:
print("YES")
else:
print("NO")
``` | instruction | 0 | 71,040 | 18 | 142,080 |
No | output | 1 | 71,040 | 18 | 142,081 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,284 | 18 | 144,568 |
"Correct Solution:
```
N = int(input())
X = set([input() for _ in range(N)])
print(len(X))
``` | output | 1 | 72,284 | 18 | 144,569 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,285 | 18 | 144,570 |
"Correct Solution:
```
N=int(input())
S=[input() for i in range(N)]
T=set(S)
print(len(T))
``` | output | 1 | 72,285 | 18 | 144,571 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,286 | 18 | 144,572 |
"Correct Solution:
```
n = int(input())
S = set(input() for i in range(n))
print(len(S))
``` | output | 1 | 72,286 | 18 | 144,573 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,287 | 18 | 144,574 |
"Correct Solution:
```
N = int(input())
print(len({ input() for i in range(N) }))
``` | output | 1 | 72,287 | 18 | 144,575 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,288 | 18 | 144,576 |
"Correct Solution:
```
n=int(input())
l=[input() for i in range(n)]
s=set(l)
print(len(s))
``` | output | 1 | 72,288 | 18 | 144,577 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,289 | 18 | 144,578 |
"Correct Solution:
```
n = int(input())
a = set([input() for _ in range(n)])
print(len(a))
``` | output | 1 | 72,289 | 18 | 144,579 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,290 | 18 | 144,580 |
"Correct Solution:
```
print(len({input().strip() for _ in range(int(input().strip()))}))
``` | output | 1 | 72,290 | 18 | 144,581 |
Provide a correct Python 3 solution for this coding contest problem.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4 | instruction | 0 | 72,291 | 18 | 144,582 |
"Correct Solution:
```
N=int(input())
d={}
for _ in range(N):
d[input()]=1
print(len(d))
``` | output | 1 | 72,291 | 18 | 144,583 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
N=int(input())
S=[input() for s in range(N)]
print(len(set(S)))
``` | instruction | 0 | 72,292 | 18 | 144,584 |
Yes | output | 1 | 72,292 | 18 | 144,585 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
N=int(input())
kuji=[input() for i in range(N)]
print(len(set(kuji)))
``` | instruction | 0 | 72,293 | 18 | 144,586 |
Yes | output | 1 | 72,293 | 18 | 144,587 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
n=int(input())
s=[str(input()) for _ in range(n)]
print(len(set(s)))
``` | instruction | 0 | 72,294 | 18 | 144,588 |
Yes | output | 1 | 72,294 | 18 | 144,589 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
n=int(input())
print(len(set([input() for _ in range(n)])))
``` | instruction | 0 | 72,295 | 18 | 144,590 |
Yes | output | 1 | 72,295 | 18 | 144,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
n=int(input())
a=[]
a.append(str(input()))
for i in range(n-1):
flag = 1
tmp = str(input())
for j in range(len(a)):
if a[j] == tmp:
flag = 0
if flag == 1:
a.append(tmp)
print(len(a))
``` | instruction | 0 | 72,296 | 18 | 144,592 |
No | output | 1 | 72,296 | 18 | 144,593 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
import sys
input = sys.stdin.readline
N = int(input())
S = [input() for _ in range(N)]
count = 0
while len(S) >0:
S.remove(S[0])
count += 1
print(count)
``` | instruction | 0 | 72,298 | 18 | 144,596 |
No | output | 1 | 72,298 | 18 | 144,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You drew lottery N times. In the i-th draw, you got an item of the kind represented by a string S_i.
How many kinds of items did you get?
Constraints
* 1 \leq N \leq 2\times 10^5
* S_i consists of lowercase English letters and has a length between 1 and 10 (inclusive).
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
Print the number of kinds of items you got.
Examples
Input
3
apple
orange
apple
Output
2
Input
5
grape
grape
grape
grape
grape
Output
1
Input
4
aaaa
a
aaa
aa
Output
4
Submitted Solution:
```
import sys
n = int(input().strip())
items = set()
for _ in range(n):
items |= {sys.readline().strip()}
print(len(items))
``` | instruction | 0 | 72,299 | 18 | 144,598 |
No | output | 1 | 72,299 | 18 | 144,599 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,300 | 18 | 144,600 |
"Correct Solution:
```
n=int(input())
s,t=(input().split())
a=""
for s,t in zip(s,t):
a+=s+t
print(a)
``` | output | 1 | 72,300 | 18 | 144,601 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,301 | 18 | 144,602 |
"Correct Solution:
```
n=int(input())
s,t=input().split()
print("".join(i+j for i,j in zip(s,t)))
``` | output | 1 | 72,301 | 18 | 144,603 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,302 | 18 | 144,604 |
"Correct Solution:
```
_, S, T = open(0).read().split()
print(''.join([s + t for s, t in zip(S, T)]))
``` | output | 1 | 72,302 | 18 | 144,605 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,303 | 18 | 144,606 |
"Correct Solution:
```
N=int(input())
S,T=input().split()
for i in range(N):
print(S[i],T[i],sep="",end="")
``` | output | 1 | 72,303 | 18 | 144,607 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,304 | 18 | 144,608 |
"Correct Solution:
```
n=int(input())
s,t=input().split()
print(*[s[i]+t[i] for i in range(n)],sep='')
``` | output | 1 | 72,304 | 18 | 144,609 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,305 | 18 | 144,610 |
"Correct Solution:
```
input()
s, t = input().split()
print(''.join(a+b for a,b in zip(s,t)))
``` | output | 1 | 72,305 | 18 | 144,611 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,306 | 18 | 144,612 |
"Correct Solution:
```
input()
s,t=input().split()
print("".join([a+b for a,b in zip(s,t)]))
``` | output | 1 | 72,306 | 18 | 144,613 |
Provide a correct Python 3 solution for this coding contest problem.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa | instruction | 0 | 72,307 | 18 | 144,614 |
"Correct Solution:
```
n=int(input())
a,b=input().split()
for i in range(n):
print(end=a[i])
print(end=b[i])
``` | output | 1 | 72,307 | 18 | 144,615 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
N = int(input())
S, T = input().split()
print(
"".join(S[i]+T[i] for i in range(N))
)
``` | instruction | 0 | 72,308 | 18 | 144,616 |
Yes | output | 1 | 72,308 | 18 | 144,617 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
input()
print(''.join(sum(list(map(list, zip(*input().split()))), [])))
``` | instruction | 0 | 72,309 | 18 | 144,618 |
Yes | output | 1 | 72,309 | 18 | 144,619 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
N=int(input())
S,T=input().split()
for i in range(0,N):
print(S[i],T[i],end="",sep="")
``` | instruction | 0 | 72,310 | 18 | 144,620 |
Yes | output | 1 | 72,310 | 18 | 144,621 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
N=input()
S,T=input().split()
msg=""
for s,t in zip(S,T):
msg+=s
msg+=t
print(msg)
``` | instruction | 0 | 72,311 | 18 | 144,622 |
Yes | output | 1 | 72,311 | 18 | 144,623 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
#b strings with the same length
n=int(input())
sentence=input().split()
ans=sentence[0]+sentence[1]
print(ans)
``` | instruction | 0 | 72,312 | 18 | 144,624 |
No | output | 1 | 72,312 | 18 | 144,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
a=int(input())
char_list1,char_list2 = list(input().split())
for n in range(a):
print(char_list1[n+1:1]+char_list2[n+1:1])
``` | instruction | 0 | 72,313 | 18 | 144,626 |
No | output | 1 | 72,313 | 18 | 144,627 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
n = input()
s,t = input().split()
for i in range(n):
print(s[i]+t[i],end='')
``` | instruction | 0 | 72,314 | 18 | 144,628 |
No | output | 1 | 72,314 | 18 | 144,629 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings s and t of length N each, both consisting of lowercase English letters.
Let us form a new string by alternating the characters of S and the characters of T, as follows: the first character of S, the first character of T, the second character of S, the second character of T, ..., the N-th character of S, the N-th character of T. Print this new string.
Constraints
* 1 \leq N \leq 100
* |S| = |T| = N
* S and T are strings consisting of lowercase English letters.
Input
Input is given from Standard Input in the following format:
N
S T
Output
Print the string formed.
Examples
Input
2
ip cc
Output
icpc
Input
8
hmhmnknk uuuuuuuu
Output
humuhumunukunuku
Input
5
aaaaa aaaaa
Output
aaaaaaaaaa
Submitted Solution:
```
def p_b():
n = int(input())
s, t = input().split()
ans = ""
for i in range(n):
ans += s[i]
ans += t[i]
print(ans)
``` | instruction | 0 | 72,315 | 18 | 144,630 |
No | output | 1 | 72,315 | 18 | 144,631 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iroha has a sequence of N strings s_1, s_2, ..., s_N.
She will choose some (possibly all) strings from the sequence, then concatenate those strings retaining the relative order, to produce a long string.
Among all strings of length K that she can produce in this way, find the lexicographically smallest one.
Constraints
* 1 ≦ N ≦ 2000
* 1 ≦ K ≦ 10^4
* For each i, 1 ≦ |s_i| ≦ K.
* |s_1| + |s_2| + ... + |s_N| ≦ 10^6
* For each i, s_i consists of lowercase letters.
* There exists at least one string of length K that Iroha can produce.
Input
The input is given from Standard Input in the following format:
N K
s_1
s_2
:
s_N
Output
Print the lexicographically smallest string of length K that Iroha can produce.
Examples
Input
3 7
at
coder
codar
Output
atcodar
Input
3 7
coder
codar
at
Output
codarat
Input
4 13
kyuri
namida
zzzzzzz
aaaaaa
Output
namidazzzzzzz
Submitted Solution:
```
from collections import defaultdict, deque, Counter
from heapq import heappush, heappop, heapify
import math
import bisect
import random
from itertools import permutations, accumulate, combinations
import sys
import string
from bisect import bisect_left, bisect_right
from math import factorial, ceil, floor
INF = float('inf')
def LI(): return list(map(int, sys.stdin.readline().split()))
def I(): return int(sys.stdin.readline())
def LS(): return sys.stdin.readline().split()
def S(): return sys.stdin.readline().strip()
def IR(n): return [I() for i in range(n)]
def LIR(n): return [LI() for i in range(n)]
def SR(n): return [S() for i in range(n)]
def LSR(n): return [LS() for i in range(n)]
def SRL(n): return [list(S()) for i in range(n)]
def MSRL(n): return [[int(j) for j in list(S())] for i in range(n)]
mod = 1000000007
n, k = LI()
L = SR(n)
dp = ['{' * l for l in range(k+1)]
for i in range(n):
for j in range(k, len(L[i]) - 1, -1):
dp[j] = min(dp[j-len(L[i])] + L[i], dp[j])
print(dp[k])
``` | instruction | 0 | 72,400 | 18 | 144,800 |
No | output | 1 | 72,400 | 18 | 144,801 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iroha has a sequence of N strings s_1, s_2, ..., s_N.
She will choose some (possibly all) strings from the sequence, then concatenate those strings retaining the relative order, to produce a long string.
Among all strings of length K that she can produce in this way, find the lexicographically smallest one.
Constraints
* 1 ≦ N ≦ 2000
* 1 ≦ K ≦ 10^4
* For each i, 1 ≦ |s_i| ≦ K.
* |s_1| + |s_2| + ... + |s_N| ≦ 10^6
* For each i, s_i consists of lowercase letters.
* There exists at least one string of length K that Iroha can produce.
Input
The input is given from Standard Input in the following format:
N K
s_1
s_2
:
s_N
Output
Print the lexicographically smallest string of length K that Iroha can produce.
Examples
Input
3 7
at
coder
codar
Output
atcodar
Input
3 7
coder
codar
at
Output
codarat
Input
4 13
kyuri
namida
zzzzzzz
aaaaaa
Output
namidazzzzzzz
Submitted Solution:
```
N, K = [int(x) for x in input().split()]
Kp1 = K+1
ss = [input() for _ in range(N)]
ds = ["~" * n for n in range(Kp1)]
for s in ss:
len_s = len(s)
for i in range(Kp1-len_s):
t = ds[i] + s
if t < ds[i+len_s]:
ds[i+len_s] = t
print(ds[K])
``` | instruction | 0 | 72,401 | 18 | 144,802 |
No | output | 1 | 72,401 | 18 | 144,803 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iroha has a sequence of N strings s_1, s_2, ..., s_N.
She will choose some (possibly all) strings from the sequence, then concatenate those strings retaining the relative order, to produce a long string.
Among all strings of length K that she can produce in this way, find the lexicographically smallest one.
Constraints
* 1 ≦ N ≦ 2000
* 1 ≦ K ≦ 10^4
* For each i, 1 ≦ |s_i| ≦ K.
* |s_1| + |s_2| + ... + |s_N| ≦ 10^6
* For each i, s_i consists of lowercase letters.
* There exists at least one string of length K that Iroha can produce.
Input
The input is given from Standard Input in the following format:
N K
s_1
s_2
:
s_N
Output
Print the lexicographically smallest string of length K that Iroha can produce.
Examples
Input
3 7
at
coder
codar
Output
atcodar
Input
3 7
coder
codar
at
Output
codarat
Input
4 13
kyuri
namida
zzzzzzz
aaaaaa
Output
namidazzzzzzz
Submitted Solution:
```
#!/usr/bin/env python3
import sys
sys.setrecursionlimit(2020)
def make_best(s, best, path):
candidate = ''.join([s[i] for i in path])
if best is None or candidate < best:
return candidate
return best
def dfs(n, k, s, l, i, path, t, best):
path.append(i)
t += l[i]
if t == k:
best = make_best(s, best, path)
path.pop()
return best
elif k < t:
path.pop()
return best
for j in range(i + 1, n):
best = dfs(n, k, s, l, j, path, t, best)
path.pop()
return best
def solve(n, k, s):
l = [len(si) for si in s]
dp = [[0] * (k + 1) for _ in range(n + 1)]
dp[n][0] = 1
for i in range(n - 1, -1, -1):
li = l[i]
lk = k - li
for j in range(k + 1):
if dp[i + 1][j]:
dp[i][j] = 1
if j <= lk:
dp[i][j + li] = 1
order = [i for i in range(n)]
order.sort(key = lambda i: s[i])
order2 = []
i = 0
while i < n:
j = order[i]
a = [j]
order2.append(a)
sj = s[j]
lj = l[j]
ni = i + 1
while ni < n:
nj = order[ni]
if lj <= l[nj]:
snj = s[nj]
if snj[:lj] == sj:
a.append(nj)
ni += 1
else:
break
else:
break
a.sort(reverse = True)
i = ni
best = None
for a in order2:
for i in a:
if dp[i][k - l[i]]:
path = []
best = dfs(n, k, s, l, i, path, 0, best)
if best is not None:
break
return best
def main():
n, k = input().split()
n = int(n)
k = int(k)
s = []
for _ in range(n):
si = input()
s.append(si)
print(solve(n, k, s))
if __name__ == '__main__':
main()
``` | instruction | 0 | 72,402 | 18 | 144,804 |
No | output | 1 | 72,402 | 18 | 144,805 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Iroha has a sequence of N strings s_1, s_2, ..., s_N.
She will choose some (possibly all) strings from the sequence, then concatenate those strings retaining the relative order, to produce a long string.
Among all strings of length K that she can produce in this way, find the lexicographically smallest one.
Constraints
* 1 ≦ N ≦ 2000
* 1 ≦ K ≦ 10^4
* For each i, 1 ≦ |s_i| ≦ K.
* |s_1| + |s_2| + ... + |s_N| ≦ 10^6
* For each i, s_i consists of lowercase letters.
* There exists at least one string of length K that Iroha can produce.
Input
The input is given from Standard Input in the following format:
N K
s_1
s_2
:
s_N
Output
Print the lexicographically smallest string of length K that Iroha can produce.
Examples
Input
3 7
at
coder
codar
Output
atcodar
Input
3 7
coder
codar
at
Output
codarat
Input
4 13
kyuri
namida
zzzzzzz
aaaaaa
Output
namidazzzzzzz
Submitted Solution:
```
N,K=map(int,input().strip().split())
s=[]
kazu=[]
for i in range(N):
s.append(input())
kazu.append(len(s[i]))
for z in range(N):
for x in range(N):
if z==x:
break
if kazu[x]+kazu[z]==K:
print(s[x]+s[z])
exit()
``` | instruction | 0 | 72,403 | 18 | 144,806 |
No | output | 1 | 72,403 | 18 | 144,807 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You want to perform the combo on your opponent in one popular fighting game. The combo is the string s consisting of n lowercase Latin letters. To perform the combo, you have to press all buttons in the order they appear in s. I.e. if s="abca" then you have to press 'a', then 'b', 'c' and 'a' again.
You know that you will spend m wrong tries to perform the combo and during the i-th try you will make a mistake right after p_i-th button (1 ≤ p_i < n) (i.e. you will press first p_i buttons right and start performing the combo from the beginning). It is guaranteed that during the m+1-th try you press all buttons right and finally perform the combo.
I.e. if s="abca", m=2 and p = [1, 3] then the sequence of pressed buttons will be 'a' (here you're making a mistake and start performing the combo from the beginning), 'a', 'b', 'c', (here you're making a mistake and start performing the combo from the beginning), 'a' (note that at this point you will not perform the combo because of the mistake), 'b', 'c', 'a'.
Your task is to calculate for each button (letter) the number of times you'll press it.
You have to answer t independent test cases.
Input
The first line of the input contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases.
Then t test cases follow.
The first line of each test case contains two integers n and m (2 ≤ n ≤ 2 ⋅ 10^5, 1 ≤ m ≤ 2 ⋅ 10^5) — the length of s and the number of tries correspondingly.
The second line of each test case contains the string s consisting of n lowercase Latin letters.
The third line of each test case contains m integers p_1, p_2, ..., p_m (1 ≤ p_i < n) — the number of characters pressed right during the i-th try.
It is guaranteed that the sum of n and the sum of m both does not exceed 2 ⋅ 10^5 (∑ n ≤ 2 ⋅ 10^5, ∑ m ≤ 2 ⋅ 10^5).
It is guaranteed that the answer for each letter does not exceed 2 ⋅ 10^9.
Output
For each test case, print the answer — 26 integers: the number of times you press the button 'a', the number of times you press the button 'b', ..., the number of times you press the button 'z'.
Example
Input
3
4 2
abca
1 3
10 5
codeforces
2 8 3 2 9
26 10
qwertyuioplkjhgfdsazxcvbnm
20 10 1 2 3 5 10 5 9 4
Output
4 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 9 4 5 3 0 0 0 0 0 0 0 0 9 0 0 3 1 0 0 0 0 0 0 0
2 1 1 2 9 2 2 2 5 2 2 2 1 1 5 4 11 8 2 7 5 1 10 1 5 2
Note
The first test case is described in the problem statement. Wrong tries are "a", "abc" and the final try is "abca". The number of times you press 'a' is 4, 'b' is 2 and 'c' is 2.
In the second test case, there are five wrong tries: "co", "codeforc", "cod", "co", "codeforce" and the final try is "codeforces". The number of times you press 'c' is 9, 'd' is 4, 'e' is 5, 'f' is 3, 'o' is 9, 'r' is 3 and 's' is 1.
Submitted Solution:
```
def main():
t = int(input())
for _ in range(t):
n, m = list(map(int, input().strip().split()))
s = input()
p = list(map(int, input().strip().split()))
p.append(n)
cnt = [[0 for _ in range(26)] for _ in range(n)]
cnt[0][ord(s[0])-97] = 1
for i in range(1, n):
for j in range(26): cnt[i][j] = cnt[i-1][j]
cnt[i][ord(s[i])-97] += 1
ret = [0 for _ in range(26)]
for pos in p:
for i in range(26): ret[i] += cnt[pos-1][i]
print(" ".join(list(map(str, ret))))
if __name__ == "__main__": main()
``` | instruction | 0 | 72,648 | 18 | 145,296 |
Yes | output | 1 | 72,648 | 18 | 145,297 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You want to perform the combo on your opponent in one popular fighting game. The combo is the string s consisting of n lowercase Latin letters. To perform the combo, you have to press all buttons in the order they appear in s. I.e. if s="abca" then you have to press 'a', then 'b', 'c' and 'a' again.
You know that you will spend m wrong tries to perform the combo and during the i-th try you will make a mistake right after p_i-th button (1 ≤ p_i < n) (i.e. you will press first p_i buttons right and start performing the combo from the beginning). It is guaranteed that during the m+1-th try you press all buttons right and finally perform the combo.
I.e. if s="abca", m=2 and p = [1, 3] then the sequence of pressed buttons will be 'a' (here you're making a mistake and start performing the combo from the beginning), 'a', 'b', 'c', (here you're making a mistake and start performing the combo from the beginning), 'a' (note that at this point you will not perform the combo because of the mistake), 'b', 'c', 'a'.
Your task is to calculate for each button (letter) the number of times you'll press it.
You have to answer t independent test cases.
Input
The first line of the input contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases.
Then t test cases follow.
The first line of each test case contains two integers n and m (2 ≤ n ≤ 2 ⋅ 10^5, 1 ≤ m ≤ 2 ⋅ 10^5) — the length of s and the number of tries correspondingly.
The second line of each test case contains the string s consisting of n lowercase Latin letters.
The third line of each test case contains m integers p_1, p_2, ..., p_m (1 ≤ p_i < n) — the number of characters pressed right during the i-th try.
It is guaranteed that the sum of n and the sum of m both does not exceed 2 ⋅ 10^5 (∑ n ≤ 2 ⋅ 10^5, ∑ m ≤ 2 ⋅ 10^5).
It is guaranteed that the answer for each letter does not exceed 2 ⋅ 10^9.
Output
For each test case, print the answer — 26 integers: the number of times you press the button 'a', the number of times you press the button 'b', ..., the number of times you press the button 'z'.
Example
Input
3
4 2
abca
1 3
10 5
codeforces
2 8 3 2 9
26 10
qwertyuioplkjhgfdsazxcvbnm
20 10 1 2 3 5 10 5 9 4
Output
4 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 9 4 5 3 0 0 0 0 0 0 0 0 9 0 0 3 1 0 0 0 0 0 0 0
2 1 1 2 9 2 2 2 5 2 2 2 1 1 5 4 11 8 2 7 5 1 10 1 5 2
Note
The first test case is described in the problem statement. Wrong tries are "a", "abc" and the final try is "abca". The number of times you press 'a' is 4, 'b' is 2 and 'c' is 2.
In the second test case, there are five wrong tries: "co", "codeforc", "cod", "co", "codeforce" and the final try is "codeforces". The number of times you press 'c' is 9, 'd' is 4, 'e' is 5, 'f' is 3, 'o' is 9, 'r' is 3 and 's' is 1.
Submitted Solution:
```
import sys;input=sys.stdin.readline
# from decimal import *
# import math
# getcontext().prec = 50
# input().strip()
# int(input())
# list(map(int,input().split()))
# map(int,input().split())
# def solve():
# for _ in range(int(input())):
# solve()
# print()
def update(res,h):
for i in h.keys():
res[ord(i)-97]+=h[i]
def solve():
n,m = map(int,input().split())
s = input().strip()
q = sorted(list(map(int,input().split())),reverse = True)
h = {}
for i in s:
if i not in h:
h[i] = 1
else:
h[i] = h[i]+1
res = [0 for _ in range(26)]
last = len(s)
update(res,h)
for qu in q:
for x in range(qu,last):
h[s[x]]-=1
update(res,h)
last = qu
print(*res)
# solve()
for _ in range(int(input())):
solve()
``` | instruction | 0 | 72,649 | 18 | 145,298 |
Yes | output | 1 | 72,649 | 18 | 145,299 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You want to perform the combo on your opponent in one popular fighting game. The combo is the string s consisting of n lowercase Latin letters. To perform the combo, you have to press all buttons in the order they appear in s. I.e. if s="abca" then you have to press 'a', then 'b', 'c' and 'a' again.
You know that you will spend m wrong tries to perform the combo and during the i-th try you will make a mistake right after p_i-th button (1 ≤ p_i < n) (i.e. you will press first p_i buttons right and start performing the combo from the beginning). It is guaranteed that during the m+1-th try you press all buttons right and finally perform the combo.
I.e. if s="abca", m=2 and p = [1, 3] then the sequence of pressed buttons will be 'a' (here you're making a mistake and start performing the combo from the beginning), 'a', 'b', 'c', (here you're making a mistake and start performing the combo from the beginning), 'a' (note that at this point you will not perform the combo because of the mistake), 'b', 'c', 'a'.
Your task is to calculate for each button (letter) the number of times you'll press it.
You have to answer t independent test cases.
Input
The first line of the input contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases.
Then t test cases follow.
The first line of each test case contains two integers n and m (2 ≤ n ≤ 2 ⋅ 10^5, 1 ≤ m ≤ 2 ⋅ 10^5) — the length of s and the number of tries correspondingly.
The second line of each test case contains the string s consisting of n lowercase Latin letters.
The third line of each test case contains m integers p_1, p_2, ..., p_m (1 ≤ p_i < n) — the number of characters pressed right during the i-th try.
It is guaranteed that the sum of n and the sum of m both does not exceed 2 ⋅ 10^5 (∑ n ≤ 2 ⋅ 10^5, ∑ m ≤ 2 ⋅ 10^5).
It is guaranteed that the answer for each letter does not exceed 2 ⋅ 10^9.
Output
For each test case, print the answer — 26 integers: the number of times you press the button 'a', the number of times you press the button 'b', ..., the number of times you press the button 'z'.
Example
Input
3
4 2
abca
1 3
10 5
codeforces
2 8 3 2 9
26 10
qwertyuioplkjhgfdsazxcvbnm
20 10 1 2 3 5 10 5 9 4
Output
4 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 9 4 5 3 0 0 0 0 0 0 0 0 9 0 0 3 1 0 0 0 0 0 0 0
2 1 1 2 9 2 2 2 5 2 2 2 1 1 5 4 11 8 2 7 5 1 10 1 5 2
Note
The first test case is described in the problem statement. Wrong tries are "a", "abc" and the final try is "abca". The number of times you press 'a' is 4, 'b' is 2 and 'c' is 2.
In the second test case, there are five wrong tries: "co", "codeforc", "cod", "co", "codeforce" and the final try is "codeforces". The number of times you press 'c' is 9, 'd' is 4, 'e' is 5, 'f' is 3, 'o' is 9, 'r' is 3 and 's' is 1.
Submitted Solution:
```
#!/usr/bin/python3
# Codeforces - Round 624
# Problem C - Perform the Combo
from collections import Counter
letters = "abcdefghijklmnopqrstuvwxyz"
def combo(m, s, p):
cnt = Counter(s)
ind = 0
p.sort()
l = len(p)
for i in range(l):
if p[i] == ind:
continue
presses = s[ind:p[i]]
for press in presses:
cnt[press] += l - i
ind = p[i]
sol = [str(cnt[l]) for l in letters]
return " ".join(sol)
# Main
t = int(input())
for case in range(t):
nm = [int(x) for x in input().split(" ")]
n = nm[0]
m = nm[1]
s = input()
p = [int(x) for x in input().split(" ")]
sol = combo(m, s, p)
print (sol)
``` | instruction | 0 | 72,650 | 18 | 145,300 |
Yes | output | 1 | 72,650 | 18 | 145,301 |
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