0;  8, 50
0;  8, 42
0;  8, 30
0;  8, 18
0;  8,  7
0;  7, 50
0;  7, 34
0;  7, 14
0;  6, 50
0;  6, 20
0;  5, 45
0;  5,  5
0;  4, 45
0;  3, 34
0;  2, 22
0;  1, 10
0;  0,  0
0;  1, 15
0;  2, 30
0;  3, 45
0;  5,  0
0;  6, 15
0;  7, 25
0;  8, 32
0;  9, 40
0; 10, 40
0; 11, 35
0; 12, 25
0; 12, 50
0; 13,  0