2 1 b 1 4 c

2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c
2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c
2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c2 1 b 1 4 c