// nested loop example

#include <iostream>
using namespace std;

int main()
{
	int row = 0;
	int col = 0;
	int num = 0;
	int sum = 0;

	for (row = 4; row >=1; row--)
	{
		for (col = 3; col >= 1; col--)
		{
			cin >> num;
			sum += num;
			if (num == 13)
			{
				cout << "You get an A and everyone goes home" << endl;
				row = -9;
				break;
			}
		}
	}

	cout << "sum is " << sum << endl;

	return 0;
}