help me to fix this bug

Question

hello every body i have a question, do you know what is this app problem, it is simple and it's very mysterious bug
https://sololearn.com/compiler-playground/cOz1ou7gUofA/?ref=app

Answer 1

1. Console.ReadLine() does not take any argument. Remove the string

2. Console.ReadLine() returns a string, not an integer.