#include <stdio.h>

   int main()
   {
        int width, height;
        printf("Enter the size of the fractal, height and width:\n");
        scanf("%d", &height);
        scanf("%d", &width);

        int max_iter = 56;

        int x, y;
        for (y = 0; y <= height; y++) {
                for (x = 0; x <= width; x++) {
                        double x0 = -0.521;
                        double y0 = 0.520;

                        double xi = (3.5 / width) * x - 1.7;
                        double yi = (2.0 / height) * y - 1.0;

                        int iteration = 0;

                        while ((xi * xi + yi * yi) < 4 && (iteration < max_iter)) {
                                double xtemp = xi * xi - yi * yi + x0;
                                yi = 2.0 * xi * yi + y0;
                                xi = xtemp;
                                iteration++;
                        }

                        if (iteration == max_iter || iteration == 0) {
                                printf(" ");
                        } else {
                                switch ((iteration - 1) % 8) {
                                case 0:
                                        printf(".");
                                        break;
                                case 1:
                                        printf(":");
                                        break;
                                case 2:
                                        printf("c");
                                        break;
                                case 3:
                                        printf("o");
                                        break;
                                case 4:
                                        printf("C");
                                        break;
                                case 5:
                                        printf("O");
                                        break;
                                case 6:
                                        printf("8");
                                        break;
                                case 7:
                                        printf("@");
                                        break;
                                }

                        }
                }
                printf("\n");
        }

        return 0;
   }