The first line integer means the number of input integer a and b. Your task is to Calculate a + b.

Your task is to Calculate a + b. The first line integer means the numbers of pairs of input integers.

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

2
1 5
10 20


6
30


 提交 2480 正确 1610 格式错误 11 答案错误 492 时间超限 22 输出超限 52 运行错误 58 编译错误 235