B B C A A A A A E L L H H H I J J J J F 
B C C C D D E E E G L L H I I I K K J F 
B B C D D D E G G G G L H I K K K F F F 

B B C A A A A A K K K I H L G G G G E F 
B C C C D D J K K I I I H L L G E E E F 
B B C D D D J J J J I H H H L L E F F F 


Nb de solutions : 2