25/27, 28/30, 31/33, 34/36, 37/39, 40/42, 43/45
34/36, 37/39, 40/42
27/30, 31/33, 34/36, 37/39
27/30, 31/33, 34/36
31/33, 34/36, 37/39, 40/42, 43/45