15; 51, 50 16; 44, 30 17; 35, 30 18; 24, 50 19; 10, 10 19; 50, 20 20; 22, 10 20; 42, 50 20; 50, 0 20; 42, 50 20; 22, 10 19; 50, 20 19; 10, 10 18; 24, 50 17; 35, 30 16; 44, 30 15; 51, 50 15; 0, 0 14; 8, 10 13; 15, 30 12; 24, 30 11; 35, 10 10; 49, 50 10; 9, 40 9; 37, 50 9; 17, 10 9; 10, 0 9; 17, 10 9; 37, 50 10; 9, 50 10; 49, 50 11; 35, 25 12; 24, 30 13; 15, 30 14; 8, 10 15; 0, 0