1200. 聪明的张小强

Why ZhangXiaoqiang can have a computer at ECNU’s lab?Because he can do integer additions when he was just born!

输入格式

The first line contains a single number N,stand for the number of test cases.

The following N lines each contains two integers A and B (A,B<50000).

输出格式

For each test case,output the answer in a single line.

样例

Input
1
1 1

Output
2
hint:输入数字前面可能会出现'+'号，小心哦！，输出当然不需要符号了。


61 人解决，164 人已尝试。

72 份提交通过，共有 516 份提交。

5.7 EMB 奖励。