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 |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w | instruction | 0 | 46,946 | 18 | 93,892 |
"Correct Solution:
```
n=input()
print(n[::-1])
``` | output | 1 | 46,946 | 18 | 93,893 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w | instruction | 0 | 46,947 | 18 | 93,894 |
"Correct Solution:
```
n=list(input())
k=len(n)
for i in range(int(k/2)):
n[i],n[k-i-1]=n[k-i-1],n[i]
for i in range(k):
print(n[i], end="")
print("")
``` | output | 1 | 46,947 | 18 | 93,895 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w | instruction | 0 | 46,948 | 18 | 93,896 |
"Correct Solution:
```
# -*- coding: utf-8 -*-
print ( input ( )[::-1] )
``` | output | 1 | 46,948 | 18 | 93,897 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w | instruction | 0 | 46,949 | 18 | 93,898 |
"Correct Solution:
```
# Aizu Problem 0006: Reverse Sequence
#
import sys, math, os
# read input:
PYDEV = os.environ.get('PYDEV')
if PYDEV=="True":
sys.stdin = open("sample-input.txt", "rt")
print(input().strip()[::-1])
``` | output | 1 | 46,949 | 18 | 93,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
# -*- coding: utf-8 -*-
import sys
import os
s = input().strip()
print(s[::-1])
``` | instruction | 0 | 46,950 | 18 | 93,900 |
Yes | output | 1 | 46,950 | 18 | 93,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
print(*input()[::-1], sep='')
``` | instruction | 0 | 46,951 | 18 | 93,902 |
Yes | output | 1 | 46,951 | 18 | 93,903 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
# 87
print(input()[::-1])
``` | instruction | 0 | 46,952 | 18 | 93,904 |
Yes | output | 1 | 46,952 | 18 | 93,905 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
print(*reversed(input()), sep='')
``` | instruction | 0 | 46,953 | 18 | 93,906 |
Yes | output | 1 | 46,953 | 18 | 93,907 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
# coding=utf-8
sentence = input()
sentence.__reversed__()
print(sentence)
``` | instruction | 0 | 46,954 | 18 | 93,908 |
No | output | 1 | 46,954 | 18 | 93,909 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
def main():
IN=input()
if IN=='':
break
print(IN[::-1])
``` | instruction | 0 | 46,955 | 18 | 93,910 |
No | output | 1 | 46,955 | 18 | 93,911 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
import sys
#from me.io import dup_file_stdin
#@dup_file_stdin
def solve():
print(sys.stdin.readline()[::-1])
solve()
``` | instruction | 0 | 46,956 | 18 | 93,912 |
No | output | 1 | 46,956 | 18 | 93,913 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which reverses a given string str.
Input
str (the size of str ≤ 20) is given in a line.
Output
Print the reversed str in a line.
Example
Input
w32nimda
Output
admin23w
Submitted Solution:
```
a=[ i for i in input()]
for i in reversed(range(len(a))):
print(a[i],end="")
``` | instruction | 0 | 46,957 | 18 | 93,914 |
No | output | 1 | 46,957 | 18 | 93,915 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder loves simple strings! A string t is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add are not simple.
zscoder is given a string s. He wants to change a minimum number of characters so that the string s becomes simple. Help him with this task!
Input
The only line contains the string s (1 ≤ |s| ≤ 2·105) — the string given to zscoder. The string s consists of only lowercase English letters.
Output
Print the simple string s' — the string s after the minimal number of changes. If there are multiple solutions, you may output any of them.
Note that the string s' should also consist of only lowercase English letters.
Examples
Input
aab
Output
bab
Input
caaab
Output
cabab
Input
zscoder
Output
zscoder
Submitted Solution:
```
#copt
t = input() + ' '
s = ' '
for a, b in zip(t, t[1:]):
if a == s[-1]:
for q in 'abc':
if a != q != b:
s += q
break
else: s += a
print(s[1:])
``` | instruction | 0 | 47,526 | 18 | 95,052 |
Yes | output | 1 | 47,526 | 18 | 95,053 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder loves simple strings! A string t is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add are not simple.
zscoder is given a string s. He wants to change a minimum number of characters so that the string s becomes simple. Help him with this task!
Input
The only line contains the string s (1 ≤ |s| ≤ 2·105) — the string given to zscoder. The string s consists of only lowercase English letters.
Output
Print the simple string s' — the string s after the minimal number of changes. If there are multiple solutions, you may output any of them.
Note that the string s' should also consist of only lowercase English letters.
Examples
Input
aab
Output
bab
Input
caaab
Output
cabab
Input
zscoder
Output
zscoder
Submitted Solution:
```
s = list(input())
for i in range(1, len(s) - 1):
if s[i] == s[i - 1]:
if s[i] == "z":
s[i] = chr(ord(s[i]) - 2)
else:
s[i] = chr(ord(s[i]) + 1)
if s[i] == s[i + 1]:
if s[i] == "z":
s[i] = chr(ord(s[i]) - 2)
else:
s[i] = chr(ord(s[i]) + 1)
if len(s) >= 2:
if s[-1] == s[-2]:
if s[-1] == "z":
s[-1] = chr(ord(s[-1]) - 2)
else:
s[-1] = chr(ord(s[-1]) + 1)
print("".join(s))
``` | instruction | 0 | 47,528 | 18 | 95,056 |
Yes | output | 1 | 47,528 | 18 | 95,057 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder loves simple strings! A string t is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add are not simple.
zscoder is given a string s. He wants to change a minimum number of characters so that the string s becomes simple. Help him with this task!
Input
The only line contains the string s (1 ≤ |s| ≤ 2·105) — the string given to zscoder. The string s consists of only lowercase English letters.
Output
Print the simple string s' — the string s after the minimal number of changes. If there are multiple solutions, you may output any of them.
Note that the string s' should also consist of only lowercase English letters.
Examples
Input
aab
Output
bab
Input
caaab
Output
cabab
Input
zscoder
Output
zscoder
Submitted Solution:
```
s = str(input())
n = len(s)
L = [s[i] for i in range(n)]
A = "abcdefghijklmnopqrstuvwxyz"
ancien = "#"
actuel = s[0]
i = 1
d = 0
while i < n:
while i < n and s[i] == actuel:
i += 1
j = 0
while A[j] == ancien or A[j] == actuel or (i < n and A[j] == s[i]):
j += 1
for l in range(d+1,i,2):
L[l] = A[j]
ancien = actuel
if i < n:
actuel = s[i]
d = i
for i in range(n):
print(L[i],end="")
``` | instruction | 0 | 47,529 | 18 | 95,058 |
Yes | output | 1 | 47,529 | 18 | 95,059 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,704 | 18 | 95,408 |
"Correct Solution:
```
import collections
import sys
S=collections.deque(input())
Q=int(input())
r=0
for _ in range(Q):
fs=next(sys.stdin).split()
T=int(fs[0])
if T==1:
r^=1
else:
F,C=int(fs[1])-1,fs[2]
if F==r:
S.appendleft(C)
else:
S.append(C)
ans=''.join(reversed(S) if r else S)
print(ans)
``` | output | 1 | 47,704 | 18 | 95,409 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,705 | 18 | 95,410 |
"Correct Solution:
```
s=input()
n=int(input())
t=""
for _ in range(n):
q=input().split()
if q[0]=="1":
t,s=s,t
else:
if q[1]=="1":
t+=q[2]
else:
s+=q[2]
t=t[::-1]
print(t+s)
``` | output | 1 | 47,705 | 18 | 95,411 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,706 | 18 | 95,412 |
"Correct Solution:
```
import sys
s=input()
q=int(input())
a=[]
b=[]
c=0
for i in sys.stdin:
if '1' in i.split()[0]:
a,b=b,a
c+=1
else:
if '1' in i.split()[1]:
a.append(i.split()[2])
else:
b.append(i.split()[2])
if c%2==1:
s=''.join(list(s)[::-1])
print(''.join(a[::-1])+s+''.join(b))
``` | output | 1 | 47,706 | 18 | 95,413 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,707 | 18 | 95,414 |
"Correct Solution:
```
s = input()
q = int(input())
Q = [list(map(str, input().split())) for _ in range(q)]
t = ''
for qi in Q:
if int(qi[0]) == 1:
s, t = t, s
else:
if int(qi[1]) == 1:
t += qi[2]
else:
s += qi[2]
t = t[::-1]
t += s
print(t)
``` | output | 1 | 47,707 | 18 | 95,415 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,708 | 18 | 95,416 |
"Correct Solution:
```
S=input()
n=int(input())
t=0
L=""
R=""
for i in range(n):
Q=list(input().split())
if Q[0]=="1":
if t==0:
t=1
else:
t=0
else:
if int(Q[1])+t==2:
R=R+Q[2]
else:
L=Q[2]+L
ans=L+S+R
if t==0:
print(ans)
else:
print(ans[::-1])
``` | output | 1 | 47,708 | 18 | 95,417 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,709 | 18 | 95,418 |
"Correct Solution:
```
s=input()
q=int(input())
rev=1
sf=""
sb=s
for _ in range(0,q):
n=input().split()
if n[0]=="1":
rev*=-1
else:
if (n[1]=="1" and rev==1) or (n[1]=="2" and rev==-1):
sf+=n[2]
else:
sb+=n[2]
s=sf[::-1]+sb
if rev==1:
print(s)
else:
print(s[::-1])
``` | output | 1 | 47,709 | 18 | 95,419 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,710 | 18 | 95,420 |
"Correct Solution:
```
from collections import deque
S=deque(input())
q=int(input())
rev=False
for _ in range(q):
inp=input()
if inp=="1":
rev= not rev
else:
t,f,c=inp.split()
if (rev and f=="1") or (not rev and f=="2"):
S.append(c)
else:
S.appendleft(c)
if rev:
S.reverse()
print("".join(S))
``` | output | 1 | 47,710 | 18 | 95,421 |
Provide a correct Python 3 solution for this coding contest problem.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy | instruction | 0 | 47,711 | 18 | 95,422 |
"Correct Solution:
```
s1=list(input())
q=int(input())
s0=[]
f=1
for i in range(q):
a=list(input().split())
#print(i,a,s)
if int(a[0])==1:
f=(f+1)%2
else:
if (f+int(a[1]))%2==0:
s0.append(a[2])
else:
s1.append(a[2])
if f==1:
print("".join(s0[::-1])+"".join(s1))
else:
print("".join(s1[::-1])+"".join(s0))
``` | output | 1 | 47,711 | 18 | 95,423 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
S = input()
Q = int(input())
nT = 0
s1 = []
s2 = []
for i in range(Q):
Query = input()
if Query == "1":
nT += 1
continue
T, F, C = Query.split()
if (F == "1") ^ (nT%2 == 1):
s1.append(C)
else:
s2.append(C)
#print(s1, s2)
r = "".join(reversed(s1))+S+"".join(s2)
if nT%2 == 1:
r = "".join(reversed(r))
print(r)
``` | instruction | 0 | 47,712 | 18 | 95,424 |
Yes | output | 1 | 47,712 | 18 | 95,425 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
def solve():
S = input()
q = int(input())
flg = 0
li = ["", ""]
for _ in range(q):
Q = input().split()
if Q[0] == "1":
flg = 1 - flg
else:
li[(int(Q[1]) - 1 + flg) % 2] += Q[2]
if flg:
S = S[::-1]
print(li[flg][::-1] + S + li[1 - flg])
solve()
``` | instruction | 0 | 47,713 | 18 | 95,426 |
Yes | output | 1 | 47,713 | 18 | 95,427 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
from collections import deque
s = deque(input())
q = int(input())
l = list(list(input().split()) for _ in range(q))
t = 0
for i in l:
if len(i)==1:
t += 1
else:
a,f,c = i
if (f=="1" and t%2==0) or (f=="2" and t%2==1) :
s.appendleft(c)
else:
s.append(c)
if t%2==1:
s.reverse()
print(*s,sep="")
``` | instruction | 0 | 47,714 | 18 | 95,428 |
Yes | output | 1 | 47,714 | 18 | 95,429 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
S = input()
Q = int(input())
b = "" #reversed
a = ""
f = 0
for i in range(Q):
q = input()
if q == "1":
f+=1
else:
_,F,C = q.split()
if (f+int(F))%2==1:
b+=C
else:
a+=C
if f%2==0:
print(b[::-1]+S+a)
else:
print(a[::-1]+S[::-1]+b)
``` | instruction | 0 | 47,715 | 18 | 95,430 |
Yes | output | 1 | 47,715 | 18 | 95,431 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
S = input()
Q = int(input())
for i in range(Q):
A = input().split()
if len(A) == 1:
S = S[::-1]
else:
if int(A[1]) == 1:
S = A[2] + S
else:
S += A[2]
print(S)
``` | instruction | 0 | 47,716 | 18 | 95,432 |
No | output | 1 | 47,716 | 18 | 95,433 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
S =input()
Q = int(input())
T = [0]*Q
for i in range(0,Q):
T[i] = list(map(str, input().split()))
nS = ""
for i in range(0,Q):
if(T[i][0] == "1"):
S = S[::-1]
else:
if(T[i][1] == "1"):
S = T[i][2]+S
elif(T[i][1] =="2"):
S = S+T[i][2]
print(S)
``` | instruction | 0 | 47,717 | 18 | 95,434 |
No | output | 1 | 47,717 | 18 | 95,435 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
x = input()
s = []
n = int(input())
for i in range(n):
array = list(map(str,input().split()))
s.append(array)
a = ""
b = ""
c = 0
for i in range(n):
if s[i][0] == "1":
c += 1
c = c%2
else:
if c == 0:
if s[i][1] == "1":
a = s[i][2] + a
else:
b.append(s[i][2])
else:
if s[i][1] == "1":
b.append(s[i][2])
else:
a = s[i][2] + a
if c == 0:
print(a + x + b)
else:
print(b + x + a)
``` | instruction | 0 | 47,718 | 18 | 95,436 |
No | output | 1 | 47,718 | 18 | 95,437 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Takahashi has a string S consisting of lowercase English letters.
Starting with this string, he will produce a new one in the procedure given as follows.
The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:
* If T_i = 1: reverse the string S.
* If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.
* If F_i = 1 : Add C_i to the beginning of the string S.
* If F_i = 2 : Add C_i to the end of the string S.
Help Takahashi by finding the final string that results from the procedure.
Constraints
* 1 \leq |S| \leq 10^5
* S consists of lowercase English letters.
* 1 \leq Q \leq 2 \times 10^5
* T_i = 1 or 2.
* F_i = 1 or 2, if provided.
* C_i is a lowercase English letter, if provided.
Input
Input is given from Standard Input in the following format:
S
Q
Query_1
:
Query_Q
In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:
1
which means T_i = 1, and:
2 F_i C_i
which means T_i = 2.
Output
Print the resulting string.
Examples
Input
a
4
2 1 p
1
2 2 c
1
Output
cpa
Input
a
6
2 2 a
2 1 b
1
2 2 c
1
1
Output
aabc
Input
y
1
2 1 x
Output
xy
Submitted Solution:
```
S=input()
Q=int(input())
reverse=False
for _ in range(Q):
inp=input()
if inp[0]=="1":
reverse= not reverse
elif inp[0]=="2":
if (inp[2]=="1" and not reverse) or (inp[2]=="2" and reverse):
S=inp[4]+S
else:
S=S+inp[4]
if reverse:
S=S[::-1]
print(S)
``` | instruction | 0 | 47,719 | 18 | 95,438 |
No | output | 1 | 47,719 | 18 | 95,439 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a string S. Let T be the concatenation of K copies of S. We can repeatedly perform the following operation: choose a character in T and replace it with a different character. Find the minimum number of operations required to satisfy the following condition: any two adjacent characters in T are different.
Constraints
* 1 \leq |S| \leq 100
* S consists of lowercase English letters.
* 1 \leq K \leq 10^9
* K is an integer.
Input
Input is given from Standard Input in the following format:
S
K
Output
Print the minimum number of operations required.
Examples
Input
issii
2
Output
4
Input
qq
81
Output
81
Input
cooooooooonteeeeeeeeeest
999993333
Output
8999939997
Submitted Solution:
```
t=input()
s=list(t)
k=int(input())
# 全部同じ文字の場合
if s==[s[0]]*len(s):
print((len(s)*k)//2)
exit()
b=[1]
for i in range(1,len(s)):
if s[i-1]==s[i]:
b[-1]+=1
else:
b.append(1)
ans=0
for i in b:
ans+=i//2*k
if t[0]==t[-1] and (b[0]+b[-1])%2==0:
ans+=k-1
print(ans)
``` | instruction | 0 | 47,728 | 18 | 95,456 |
Yes | output | 1 | 47,728 | 18 | 95,457 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a string S. Let T be the concatenation of K copies of S. We can repeatedly perform the following operation: choose a character in T and replace it with a different character. Find the minimum number of operations required to satisfy the following condition: any two adjacent characters in T are different.
Constraints
* 1 \leq |S| \leq 100
* S consists of lowercase English letters.
* 1 \leq K \leq 10^9
* K is an integer.
Input
Input is given from Standard Input in the following format:
S
K
Output
Print the minimum number of operations required.
Examples
Input
issii
2
Output
4
Input
qq
81
Output
81
Input
cooooooooonteeeeeeeeeest
999993333
Output
8999939997
Submitted Solution:
```
# coding:utf-8
s = input()
k = int(input())
if(len(s) == 1 and k > 1):
print( int(k / 2) )
elif(len(s) == 1 and k == 1):
print(0)
else:
chenge_count = 0
count_tmp = 0
for i in range(1, len(s)):
if( s[i] == s[i-1] ):
count_tmp += 1
elif(s[i] != s[i-1]):
count_tmp += 1
chenge_count += int(count_tmp / 2)
count_tmp = 0
if(s[0] == s[-1] and k > 1):
chenge_count += 1
print(chenge_count * k)
``` | instruction | 0 | 47,732 | 18 | 95,464 |
No | output | 1 | 47,732 | 18 | 95,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On some day in January 2018, Takaki is writing a document. The document has a column where the current date is written in `yyyy/mm/dd` format. For example, January 23, 2018 should be written as `2018/01/23`.
After finishing the document, she noticed that she had mistakenly wrote `2017` at the beginning of the date column. Write a program that, when the string that Takaki wrote in the date column, S, is given as input, modifies the first four characters in S to `2018` and prints it.
Constraints
* S is a string of length 10.
* The first eight characters in S are `2017/01/`.
* The last two characters in S are digits and represent an integer between 1 and 31 (inclusive).
Input
Input is given from Standard Input in the following format:
S
Output
Replace the first four characters in S with `2018` and print it.
Examples
Input
2017/01/07
Output
2018/01/07
Input
2017/01/31
Output
2018/01/31
Submitted Solution:
```
S=str(input())
print('2018'+S[4:])
``` | instruction | 0 | 47,795 | 18 | 95,590 |
Yes | output | 1 | 47,795 | 18 | 95,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On some day in January 2018, Takaki is writing a document. The document has a column where the current date is written in `yyyy/mm/dd` format. For example, January 23, 2018 should be written as `2018/01/23`.
After finishing the document, she noticed that she had mistakenly wrote `2017` at the beginning of the date column. Write a program that, when the string that Takaki wrote in the date column, S, is given as input, modifies the first four characters in S to `2018` and prints it.
Constraints
* S is a string of length 10.
* The first eight characters in S are `2017/01/`.
* The last two characters in S are digits and represent an integer between 1 and 31 (inclusive).
Input
Input is given from Standard Input in the following format:
S
Output
Replace the first four characters in S with `2018` and print it.
Examples
Input
2017/01/07
Output
2018/01/07
Input
2017/01/31
Output
2018/01/31
Submitted Solution:
```
#codinf:UTF-8
s = input()
print(s.replace("2017","2018")
``` | instruction | 0 | 47,798 | 18 | 95,596 |
No | output | 1 | 47,798 | 18 | 95,597 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,822 | 18 | 95,644 |
"Correct Solution:
```
import re
print('Yes' if re.search(r'C.*F', input()) else 'No')
``` | output | 1 | 47,822 | 18 | 95,645 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,823 | 18 | 95,646 |
"Correct Solution:
```
s = input()
t = s.find("C")
if s[t:].find("F") > 0:
print("Yes")
else:
print("No")
``` | output | 1 | 47,823 | 18 | 95,647 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,824 | 18 | 95,648 |
"Correct Solution:
```
s = input()
a = s.find("C")
b = s.rfind("F")
if a == -1 or b == -1:
print ("No")
else:
if a < b:
print ("Yes")
else:
print ("No")
``` | output | 1 | 47,824 | 18 | 95,649 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,825 | 18 | 95,650 |
"Correct Solution:
```
S = input()
i1 = S.find('C')
i2 = S.rfind('F')
print('Yes' if i1!=-1 and i1<i2 else 'No')
``` | output | 1 | 47,825 | 18 | 95,651 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,826 | 18 | 95,652 |
"Correct Solution:
```
s=input()
Cflag=0
for i in range(len(s)):
if s[i]=='C':
Cflag=1
if s[i]=='F' and Cflag==1:
print('Yes')
exit()
print('No')
``` | output | 1 | 47,826 | 18 | 95,653 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,827 | 18 | 95,654 |
"Correct Solution:
```
s = input()
c = s.rfind('C')
f = s.rfind('F')
print('Yes') if c >= 0 and f >= 0 and (c - f) < 0 else print('No')
``` | output | 1 | 47,827 | 18 | 95,655 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,828 | 18 | 95,656 |
"Correct Solution:
```
s = input()
C = s.find("C")
F = s.rfind("F")
if C != -1 and F != -1 and C < F:
print("Yes")
else:
print("No")
``` | output | 1 | 47,828 | 18 | 95,657 |
Provide a correct Python 3 solution for this coding contest problem.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes | instruction | 0 | 47,829 | 18 | 95,658 |
"Correct Solution:
```
s = input()
if 'C' in s and 'F' in s and s.index('C') < s.rindex('F'):
print('Yes')
else:
print('No')
``` | output | 1 | 47,829 | 18 | 95,659 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
s = input()
c = s.find("C")
f = s.find("F", c)
if c != -1 and f != -1:
print("Yes")
else:
print("No")
``` | instruction | 0 | 47,830 | 18 | 95,660 |
Yes | output | 1 | 47,830 | 18 | 95,661 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
S = input()
if S.count("C") > 0:
k = S.index("C")
if S[k+1:].count("F") > 0:
print("Yes")
exit()
print("No")
``` | instruction | 0 | 47,831 | 18 | 95,662 |
Yes | output | 1 | 47,831 | 18 | 95,663 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
s = input()
if 'C' in s:
d = s.find('C')
if 'F' in s[d:]:
print('Yes')
exit(0)
print('No')
``` | instruction | 0 | 47,832 | 18 | 95,664 |
Yes | output | 1 | 47,832 | 18 | 95,665 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
s=input()
if "C"in s and "F"in s:
if s.index("C")<s.rindex("F"):
print("Yes")
exit()
print("No")
``` | instruction | 0 | 47,833 | 18 | 95,666 |
Yes | output | 1 | 47,833 | 18 | 95,667 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
s = input()
cf = s.find('C')
ff = s.find('F')
if cf >= 0 and ff > cf:
print('Yes')
else:
print('No')
``` | instruction | 0 | 47,834 | 18 | 95,668 |
No | output | 1 | 47,834 | 18 | 95,669 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
s=input()
count=0
for i in range(len(s)):
if s[i]=="C":
for j in range(len(s[i+1:])):
if s[j+i+1]=="F" :
print("Yes")
count=1
break
if count==0:
print("No")
``` | instruction | 0 | 47,835 | 18 | 95,670 |
No | output | 1 | 47,835 | 18 | 95,671 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters.
Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way.
You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
Constraints
* 2 ≤ |s| ≤ 100
* All characters in s are uppercase English letters (`A`-`Z`).
Input
The input is given from Standard Input in the following format:
s
Output
Print `Yes` if the string `CF` can be obtained from the string s by deleting some characters. Otherwise print `No`.
Examples
Input
CODEFESTIVAL
Output
Yes
Input
FESTIVALCODE
Output
No
Input
CF
Output
Yes
Input
FCF
Output
Yes
Submitted Solution:
```
n = input()
if "C" in n and "F" in n:
if n.index("C") < n.index("F"):
print("Yes")
else:
print("No")
else:
print("No")
``` | instruction | 0 | 47,836 | 18 | 95,672 |
No | output | 1 | 47,836 | 18 | 95,673 |
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