How would I complete this problem?

I am confused as to how I can define a variable and I do not know how to "select" a certain part of the input.

And I would like to know in Python

Thank you

2. Write a function, remove_string(s, n), which removes characters from string s from O up to n and returns a new string. Note n is a positive integer. (40 pts) Ex1) remove_string('abcdefg', 3) returns 'defg'. Ex2) remove_string('abcdefg', 10) prints "too long Ex3) remove_string('abcdefg', 7) prints "empty string