2-char prefix grid
|
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
| 0 |
00
|
01
2
|
02
1
|
03
2
|
04
3
|
05
1
|
06
2
|
07
1
|
08
2
|
09
2
|
0A
1
|
0B
2
|
0C
3
|
0D
3
|
0E
3
|
0F
1
|
| 1 |
10
5
|
11
4
|
12
4
|
13
4
|
14
1
|
15
2
|
16
3
|
17
2
|
18
1
|
19
2
|
1A
1
|
1B
3
|
1C
2
|
1D
3
|
1E
4
|
1F
4
|
| 2 |
20
3
|
21
3
|
22
4
|
23
1
|
24
2
|
25
|
26
2
|
27
2
|
28
3
|
29
3
|
2A
3
|
2B
1
|
2C
1
|
2D
2
|
2E
1
|
2F
4
|
| 3 |
30
|
31
1
|
32
1
|
33
2
|
34
4
|
35
3
|
36
3
|
37
3
|
38
2
|
39
1
|
3A
1
|
3B
1
|
3C
2
|
3D
|
3E
2
|
3F
4
|
| 4 |
40
1
|
41
1
|
42
1
|
43
3
|
44
2
|
45
2
|
46
1
|
47
5
|
48
1
|
49
2
|
4A
3
|
4B
1
|
4C
3
|
4D
2
|
4E
1
|
4F
4
|
| 5 |
50
3
|
51
1
|
52
1
|
53
2
|
54
2
|
55
3
|
56
1
|
57
3
|
58
1
|
59
1
|
5A
3
|
5B
|
5C
2
|
5D
1
|
5E
2
|
5F
5
|
| 6 |
60
1
|
61
|
62
2
|
63
2
|
64
2
|
65
2
|
66
2
|
67
2
|
68
4
|
69
6
|
6A
2
|
6B
|
6C
3
|
6D
1
|
6E
1
|
6F
3
|
| 7 |
70
2
|
71
5
|
72
2
|
73
4
|
74
6
|
75
2
|
76
2
|
77
3
|
78
1
|
79
3
|
7A
1
|
7B
1
|
7C
1
|
7D
5
|
7E
2
|
7F
1
|
| 8 |
80
2
|
81
5
|
82
3
|
83
3
|
84
1
|
85
3
|
86
1
|
87
4
|
88
2
|
89
1
|
8A
3
|
8B
|
8C
1
|
8D
|
8E
4
|
8F
4
|
| 9 |
90
4
|
91
4
|
92
2
|
93
3
|
94
1
|
95
1
|
96
4
|
97
5
|
98
1
|
99
1
|
9A
2
|
9B
1
|
9C
4
|
9D
|
9E
3
|
9F
3
|
| A |
A0
3
|
A1
3
|
A2
|
A3
2
|
A4
1
|
A5
2
|
A6
|
A7
2
|
A8
2
|
A9
|
AA
2
|
AB
3
|
AC
2
|
AD
|
AE
|
AF
1
|
| B |
B0
3
|
B1
|
B2
1
|
B3
2
|
B4
3
|
B5
1
|
B6
1
|
B7
2
|
B8
4
|
B9
1
|
BA
3
|
BB
1
|
BC
1
|
BD
2
|
BE
1
|
BF
4
|
| C |
C0
5
|
C1
4
|
C2
3
|
C3
6
|
C4
1
|
C5
4
|
C6
2
|
C7
2
|
C8
7
|
C9
3
|
CA
4
|
CB
3
|
CC
2
|
CD
3
|
CE
1
|
CF
1
|
| D |
D0
2
|
D1
2
|
D2
1
|
D3
3
|
D4
2
|
D5
1
|
D6
1
|
D7
3
|
D8
3
|
D9
|
DA
4
|
DB
1
|
DC
2
|
DD
6
|
DE
4
|
DF
3
|
| E |
E0
1
|
E1
5
|
E2
1
|
E3
|
E4
4
|
E5
1
|
E6
1
|
E7
2
|
E8
1
|
E9
1
|
EA
1
|
EB
2
|
EC
2
|
ED
3
|
EE
3
|
EF
2
|
| F |
F0
2
|
F1
1
|
F2
2
|
F3
4
|
F4
1
|
F5
2
|
F6
1
|
F7
2
|
F8
2
|
F9
3
|
FA
2
|
FB
2
|
FC
2
|
FD
2
|
FE
2
|
FF
|