leetcode225.py
def pop(self):
        """
        Removes the element on top of the stack and returns that element.
        :rtype: int
        """

        Removes the element on top of the stack and returns that element.
        :rtype: int
        
Removes the element on top of the stack and returns that element.
Removes the element on top of the stack and returns that element .
def pop(self):
def pop ( self ) :
Removes the element on top of the stack and returns that element.
Removes the element on top of the stack and returns that element .
"""
        Removes the element on top of the stack and returns that element.
        :rtype: int
        """
None
int
self