回避
12,6,3,1,(8,4)
1,2,9,(4,10)
11,14,6,12
(6,8,1)
9,10
7,13,16,9,12
5,(7,9,8)
14,9,11,13,4
14,12,5
(5,7,14)
18,13,(2,15,11)
