A 5,6,10
B 2,8
C 2,4,5,6,8,10,11
D 5,6,10,12
E 5,8
F 9
G 1,3,8
H 4,5,6,7,9,10,11
I 5,6,9,12
J 8
K 2,3,5,6,8,9,10,11,12