//
//
#include <iostream>

using namespace std;

int main()
{
	int x[][4] = { {1,2,3},{5,6,7}};

	// out: r2c3, r1c4?
	cout << "x[1][2]: " << x[1][2] << ", x[0][3]: "
		<< x[0][3];

	// Q: state to input r2c2
	cout << "\n\nInput a datum for Row 2 and Col. 2: ";
	cin >> x[1][1];
	// Q: state to input r1c4
	cout << "Input a datum for Row 1 and Col. 4: ";
	cin >> x[0][3];
	// Q: state to input r2c4
	cout << "Input a datum for Row 2 and Col. 4: ";
	cin >> x[1][3];

	for(int i=0; i<2; i++)
	{	for(int j=0; j<4; j++)
			cout << x[i][j] << " ";
		cout << "\n";
	}

	// out: r1c4, r2c4
	return 0;
}