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Problem 1005. -- A+B for Input-Output Practice (III)

A+B for Input-Output Practice (III)

Time Limit: 1 Sec  Memory Limit: 64 MB
Submit: 3141  Solved: 1627
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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

HINT

Source

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