Update app.py

app.py

@@ -2,7 +2,7 @@ import streamlit as st
 
 description1 = "Given two integer numbers, return their product only if the product is equal to or lower than 1000. Otherwise, return their sum."
 description2 = "Iterate the first 10 numbers, and in each iteration, returns the sum of the current and previous number."
-description3 = "Display characters that are present at an even index number from the provided string"
+description3 = "Display characters that are present at an even index number from the provided string."
 description4 = "Remove the characters from a string starting from zero up to n and returns a new string."
 description5 = "Returns the number of times a substring is present in the provided string."
 description6 = "Checks if a number is Palindrom or Not."
@@ -35,7 +35,12 @@ def even_index(str1):
         if i % 2 == 0 :
            str_lst.append(str1[i]) 
     return(str_lst)
-        
+
+def change_str(str2,num2):
+    new_srt = ""
+    for i in range(num2,len(str2)):
+        new_srt = new_srt + str2[i]
+    return new_srt
 
 st.markdown("<h3 style='text-align:center; font-size:24px;'>Mathematical and String Operations</h3>", unsafe_allow_html=True)
 st.write("---")
@@ -63,4 +68,13 @@ if radio_bar == description3 :
     all_data = st.button("Show result")
     if all_data:
         result = even_index(str1)
+        st.success(result)
+
+if radio_bar == description4 :
+    st.markdown("<h6 style='text-align:center; font-size:16px;'>"+description4+"</h6>", unsafe_allow_html=True)
+    str2 = st.text_input(label="Enter the string:",value="")
+    char_num = st.number_input(label="Number of characters to remove:",value=0)
+    all_data = st.button("Show result")
+    if all_data:
+        result = change_str(str1)
         st.success(result)