1(3)(nil)
2(3,6)
!3(2,4)(1)
4(3,8)
5(6,11)
6(5,7)(2)
!7(6,8,13)
8(7,9)(4)
9(8,15)
10(11,18)
!11(10,12)(5)
12(11,13,20)
13(12,14)(7)
14(13,15,22)
!15(14,16)(9)
16(15,24)
17(16,27)
18(17,19)(10)
!19(18,20,29)
20(19,21)(12)
21(20,22,31)
22(21,23)(14)
!23(22,24,33)
24(23,25)(16)
25(24,35)
26(27,37)
!27(26,28)(17)
28(27,29,39)
29(28,30)(19)
30(29,31,41)
!31(30,32)(21)
32(31,33,43)
33(32,34)(23)
34(33,35,45)
!35(34,36)(25)
36(35,47)
37(38,26)
!38(37,39,48)
39(38,40)(28)
40(39,41,50)
41(40,42)(30)
!42(41,43,52)
43(42,44)(32)
44(43,45,54)
45(44,46)(34)
!46(45,47,56)
47(46)(36)
48(49)(38)
49(48,50,57)
!50(49,51)(40)
51(50,52,59)
52(51,53)(42)
53(52,54,61)
!54(53,55)(44)
55(54,56,63)
56(55)(46)
57(58)(49)
!58(57,59,64)
59(58,60)(51)
60(59,61,66)
61(60,62)(53)
!62(61,63,68)
63(62)(55)
64(65)(58)
65(64,66,69)
!66(65,67)(60)
67(66,68,71)
68(67)(62)
69(70)(65)
!70(69,71,72)
71(70)(67)
72(nil)(70)
Социальные закладки