using System;

namespace code
{
    class Mandel
    {
        static double xmin = -2;
        static double xmax = 1;
        static double ymin = -1;
        static double ymax = 1;
        
        static char escapes(double cr, double ci, int it)
        {
            double zr = 0;
            double zi = 0;
            double zrtmp;
            int i;
            for(i=0; i<it; i++) {
                // z <- z^2 + c
                zrtmp = zr*zr - zi*zi + cr;
                zi = 2*zr*zi + ci;
                zr = zrtmp;
                if (zr*zr + zi*zi > 4) {
                    return ' ';
                }
            }
            return 'X';
        }
        
        static void Main(string[] args)
        {
            int xstep = Int32.Parse(args[0]);
            int ystep = Int32.Parse(args[1]);
            int iters = Int32.Parse(args[2]);
            int xc, yc;
            double x, y;

            for(yc=0; yc<ystep; yc++) {
                y = yc*(ymax-ymin)/ystep + ymin;
                for(xc=0; xc<xstep; xc++) {
                    x = xc*(xmax-xmin)/xstep + xmin;
                    Console.Write(escapes(x, y, iters));
                }
                Console.Write('\n');
            }
        }
    }
}