11(9)->10(8,1),12(8,2),14(8,3),18(6,4),6(0,5),
10(8)->13(8,2),15(6,3),19(6,4),7(0,5),
12(8)->16(6,3),20(6,4),8(0,5),
13(8)->17(6,3),1(0,4),9(0,5),
14(8)->2(0,4),
15(6)->3(0,4),
16(6)->4(0,4),
17(6)->5(0,4),
