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

int main()
{
        const int nrows {64};   //number of rows of pixels
        const int ncols {64};   //number of columns of pixels

        cout << "P3\n"
                << ncols << " " << nrows << "\n"
                << 255 << "\n";

        for (int row {0}; row < nrows; ++row) {
                for (int col {0}; col < ncols; ++col) {
                        if ((row + col) % 8) {
                                cout << "0 13 14\n";    //black boxes
                        } else {
                                cout << "41 145 156\n";   //light blue boxes
			}
		}
        }

        return EXIT_SUCCESS;
}