A + B Problem 1000 杭电

语言：C++
思考：新手试水
注意：未规定次数输入(while（cin>>a>>b))

#include<iostream>
using namespace std;

int main()
{
	int a, b;
	while (cin >> a >> b)
	{
		int sum = 0;
		sum = a + b;
		cout << sum << endl;
	}
	return 0;
}