Background

Special for beginners, ^_^

Description

Given two integers x and y, print the sum.

Format

Input

Two integers(int) x and y, satisfying \(- 2 ^ {31} \) <= x, y <= \( 2 ^ {31} \).

Output

One integer, the sum of x and y.

Sample

Input

123 500

Output

623

Limitation

1s, 1024KiB for each test case.