#include <iostream>
#include <cstdlib>
#include <cmath>     //for the sqrt function
using namespace std;

//Flag of Japan.
//Run it like this:     ./a.out | /usr/bin/pnmtopng > japan.png
//                      file japan.png
//                      cp japan.png public_html

int main()
{
        int miny {-10};              //bottom row
        int maxy { 10};              //top row
	int minx {-15};              //leftmost column
        int maxx { 15};              //rightmost column

	int nrows {maxy - miny + 1}; //number of rows of pixels
	int ncols {maxx - minx + 1}; //number of columns of pixels

	double radius {.3 * nrows};  //of red circle

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

        for (int y {miny}; y <= maxy; ++y) {
                for (int x {minx}; x <= maxx; ++x) {
			if (sqrt(x*x + y*y) <= radius) {
                                cout << "255 0 0\n";      //in the red circle
                        } else {
                                cout << "255 255 255\n";  //in white background
                        }
                }
        }

        return EXIT_SUCCESS;
}