No testdata at current.

Background

Special for beginners, ^_^

Description

使用clear()删除某个海龟的全部绘图。

Format

Input

Two integers x and y, satisfying $0\leq x,y\leq 32767$ .

Output

One integer, the sum of x and y.

Samples

Limitation

1s, 1024KiB for each test case.