A+B for Input-Output Practice (VII)

A+B for Input-Output Practice (VII)

Problem Description

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Your task is to Calculate a + b.

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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.

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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.

Example Input

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1 510 20

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Example Output

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630

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代码：

#include <stdio.h>#include <stdlib.h>int main(){    int sum, a, b;    while(scanf("%d %d", &a, &b) != EOF)    {        sum = 0;        sum = a + b;        printf("%d\n", sum);        printf("\n");    }    return 0;}