Background

Special for beginners, ^_^

Description

Given two integers x and y, print the sum.

Format

Input

Two integers x and y, satisfying $0\leq x,y\leq10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000$ .

Output

One integer, the sum of x and y.

Samples

123 500

623

Limitation

1s, 1024KiB for each test case.