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Problem 1007. -- A+B for Input-Output Practice (VII)

1007: A+B for Input-Output Practice (VII)

Time Limit: 1 Sec  Memory Limit: 128 MB   64bit IO Format: %lld
Submitted: 2288  Accepted: 1327
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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.

Print a blank line between each case .

Sample Input

1 5
10 20

Sample Output

6

30

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