#include <iostream>
using namespace std;
int main(){
	int a[2][2] = {2, 3, 4, 1};
	int b[2][2] = {5, 7, 6, 8};
	int c[2][2];
	for(int i = 0; i < 2; i++){
		for(int j = 0; j < 2; j++){
			c[i][j] = 0;
			for(int k = 0; k < 2; k++){
				c[i][j] += a[i][k] * b[k][j];
			}
		}
	}
	for(int i = 0; i < 2; i++)
		for(int j = 0; j < 2; j++)
			cout << c[i][j] << " ";
	return 0;
}