It's pretty straightforward. Your goal is to create a function that removes the first and last characters of a string. You're given one parameter, the original string.  You don't have to worry with strings with less than two characters.
def remove_char(s):
    if len(s)>0:
       return s[1:-1]
    else:
       return ''
def remove_char(s):
    if len(s)>0:
       return s[1:-1]
    else:
       return ''