Check whether a given string can be made a palindrome by swapping characters without removing any characters.
You may swap any two character positions any number of times. Return True if some rearrangement of the string is a palindrome, otherwise return False.
Implement can_make_palindrome(s), which accepts a string and returns a Boolean. The comparison is case-sensitive, and the input string must remain the same length.
def can_make_palindrome(s):