Problem Description

Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-2^31, 2^31 - 1], then return 0.

Input Format

A single integer x

Output Format

The reversed integer

Constraints

-2^31 <= x <= 2^31 - 1

Sample Input/Output

Explanation

Reverse the digits of 123 to get 321.