If you get this in your Python 3 code test: Compiler Message: Error reading result file.You should use exception handling concepts

then remove this line and test again:

if name == "__main__":

I also stucked in loop to testmy code everywhere, even GPT says my code is correct. I go through discussions and saw same probloem with a guy and tested without that block, I was shocked, my code is now works well and ready for submission.

#!/bin/python3

import math
import os
import random
import re
import sys


S = input().strip()
try:
    num = int(S)
    print(num)
except ValueError:
    print("Bad String")