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Background

注意：正式赛会有英文题面，热身赛不收电子设备，可以在网上搜索翻译，但是正式赛禁止使用电子设备, 大家可以携带字典。

Link want to eat some apples since he doesn't like doctors.

Description

Just now, Link has counted apples in his inventory. There were $x$ apples in his inventory.And now, he has collocted $y$ more apples.How many apples will he have after he collocts $y$ more apples?

Format

Input

Two integers x and y, satisfying $0\leq x,y\leq 1000$ .

Output

One integer, the sum of x and y.

Samples

123 500

623

Limitation

1s, 1024KiB for each test case.