point by point
15:0, 30:0, 30:15, 30:30, 30:40,
15:0, 15:15, 30:15, 40:15,
0:15, 15:15, 15:30, 15:40, 30:40,
0:15, 0:30, 0:40 BP,
15:0, 30:0, 40:0 BP, 40:15 BP, 40:30 BP, 40:40, A:40 BP,
15:0, 15:15, 30:15, 40:15,
15:0, 30:0, 30:15, 30:30, 30:40,
15:0, 15:15, 30:15, 40:15,
0:15, 15:15, 15:30, 15:40, 30:40,
0:15, 0:30, 0:40 BP,
15:0, 30:0, 40:0 BP, 40:15 BP, 40:30 BP, 40:40, A:40 BP,
15:0, 15:15, 30:15, 40:15,