ZOJ-A + B Problem

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 in one line,and with one line of output for each line in input.

代码：

#include <stdio.h>
int main()
{
	int a, b;
	while (scanf("%d%d",&a,&b) != EOF)//EOF作为文件结束的标志，对应的有符号数是-1，在ASCII代码中只有0~127，因此常被用来判断调用一个函数是否成功。
	{		
		printf("%d\n",a+b);
	}
	return 0;
}