文理学院程序设计在线练习


A+B for Input-Output Practice (VII)

Time Limit: 1 Second(s)    Memory Limit: 32 MB

Total Submission(s): 1656   Accepted Submission(s): 1106
Problem Description

Your task is to 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, and followed by a blank line.

Sample Input
1 5
10 20
Sample Output
6

30