B1 b2 b6

B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6
B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6
B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6B1 b2 b6