for (int i = 0; i <= numbOfX; i++)
                for(int j = 0; j <= numbOfY; j++)
                {
                    e.Graphics.DrawImage(backgroung, new Point(sizeOfBlock * (i + 1), sizeOfBlock * (j + 1)));
                    e.Graphics.DrawImage(rock, new Point(0, sizeOfBlock * j));
                    e.Graphics.DrawImage(rock, new Point(sizeOfBlock * i, 0));
                    e.Graphics.DrawImage(rock, new Point(sizeOfBlock * numbOfX, sizeOfBlock * j));
                    e.Graphics.DrawImage(rock, new Point(sizeOfBlock * i, sizeOfBlock * numbOfY));
                }