B 28

B 28B 28B 28B 28B 28B 28
B 28B 28B 28B 28B 28B 28
B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28B 28