## Welcome To SDIBT ACM-ICPC Online Judge

Problem 1009. -- A+B for Input-Output Practice (VII)## A+B for Input-Output Practice (VII)

Time Limit: 1 Sec Memory Limit: 64 MB

Submit: 2505 Solved: 1420

[Submit][Status][Discuss]## 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

## HINT

## Source

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