백준 10951 c++

#include <iostream>
using namespace std;

int main(void)
{
	int a, b;

	while (cin >> a >> b)
	{
		if ((a > 0 && a < 10) && (b > 0 && b < 10))
		{
			cout << a + b << endl;
		}
		else
		{
			;
		}
	}
	return 0;
}