/home/toolbox/public_html/solutions/4/459/a2.in
1 1
2
3 N
4 FJ
5 DB
6 CK
7 DB
8 FC
9 LG
10 AN
11 IK
12 CC
13 AD
14 JF
15 MC
16 NM
17 FB
18 AF
19 MK
20 JD
21 AB
22 CJ
23 LB
24 HF
25 DG
26 CG
27 IJ
28 MD
29 IH
30 JI
31 EE
32 DI
33 NJ
34 FE
35 FK
36 LM
37 HD
38 DM
39 DC
40 JK
41 AE
42 AJ
43 KH
44 AM
45 EE
46 JH
47 BI
48 EM
49 AM
50 IH
51 GE
52 HE
53 AL
54 AK
55 FB
56 GH
57 AD
58 IG
59 CL
60 NG
61 NH
62 BG
63 DM
64 LD
65 LD
66 FD
67 FB
68 KL
69 FF
70 HI
71 BI
72 ML
73 DA
74 LE
75 LD
76 KK
77 DK
78 JK
79 LE
80 FE
81 FG
82 HL
83 IL
84 AC
85 KN
86 GH
87 CM
88 KE
89 ID
90