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题目描述

![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF290B/d0a8acb40db4893f5cd05b650f4206e9b618f001.png)

输入输出格式

输入格式


The input contains two integers $ a_{1},a_{2} $ ( $ 0<=a_{i}<=32 $ ), separated by a single space.

输出格式


Output a single integer.

输入输出样例

输入样例 #1

1 1

输出样例 #1

0

输入样例 #2

3 7

输出样例 #2

0

输入样例 #3

13 10

输出样例 #3

1