23
3
1
C C A A A A A A A A A A A A A A A A A A A A A
C C A A A A A A A A A A A A A A A A A A A A A
C C C A A A A A A A A A A A A A A A A A A A A
C C C C A A A A A A A A A A A A A A A A A A A
C C C C C A A A A A A A A A A A A A A A A A A
C C C C C C A A A A A A A A A A A A A A A A A
C C C C C C C A A A A A A A A A A A A A A A A
C C C C C C C B B B B B B B B B B B B B B A A
C C C C C C C B B B B B B B B B B B B B B B A
C C C C C C C B B B B B B B B B B B B B B B B
C C C C C C C B B B B B B B B B B B B B B B B
C C C C C C C B B B B B B B B B B B B B B B B
C C C C C C C B B B B B B B B B B B B B B B B
C C C C C C C B B B B B B B B B B B B B B B B
C C C C C C C C B B B B B B B B B B B B B B B
C C C C C C C C C B B B B B B B B B B B B B B
C C C C C C C C C C B B B B B B B B B B B B B
C C C C C C C C C C C B B B B B B B B B B B B
C C C C C C C C C C C C B B B B B B B B B B B
C C C C C C C C C C C C C B B B B B B B B B B
C C C C C C C C C C C C C C B B B B B B B B B
C * C C C C C C C C C C C C C B B B B B B B B
C C C C C C C C C C C C C C C B B B B B B B B