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3577 - AcmPC2015 - 101 - First Problem

通过次数

0

提交次数

0

Time Limit : 1 秒 Memory Limit : 128 MB

Calculate a + b

Input

The input will consist of a series of pairs of integers a and b,separated by a space, one pair of integers per line.

Output

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.

Examples

Input Format

1 5

Output Format

6