0;  0,  0
0;  9,  7
0; 14,  9
0; 17, 25
0; 19, 57
0; 21, 57
0; 23, 32
0; 24, 49
0; 25, 47
0; 26, 32
0; 27,  2
0; 27, 16
0; 27, 27
0; 27, 10
0; 27,  2
0; 26, 32
0; 25, 47
0; 24, 49
0; 23, 32
0; 21, 57
0; 19, 57
0; 17, 25
0; 14,  9
0;  9,  7
0;  0,  0