B1 2

B1 2B1 2B1 2B1 2
B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2
B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2
B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2
B1 2B1 2B1 2B1 2B1 2B1 2B1 2B1 2