#include <iostream>
#include <cstdlib>
using namespace std;

int main()
{
	for (int row {0}; row < 8; ++row) {
		for (int col {0}; col < 8; ++col) {
			if ((row + col) % 2 == 0) {
				cout << "##";  //Arrive here if (row + col) even
			} else {
				cout << "  ";  //Arrive here if (row + col) odd
			}
		}

		cout << "\n";  //Each row ends with a newline.
	}

	return EXIT_SUCCESS;
}