文理学院程序设计在线练习


A+B for Input-Output Practice (III)

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

Total Submission(s): 1525   Accepted Submission(s): 1222
Problem Description

Your task is to Calculate a + b.

Input

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.

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.

Sample Input
1 5
10 20
0 0
Sample Output
6
30