class Solution(object):

    def reverse(self, x):

        """

        :type x: int

        :rtype: int

        """

        answer = 0

        sign = 1 if x > 0 else -1

        x = abs(x)

        while x > 0:

            answer = answer * 10 + x % 10

            x/=10

        if answer > 2147483647:

            answer = 0

        return sign*answer