30
19 17 20 23 22 16 21 24 18 25 26 30 27 29 28 
30 29 22 18 23 20 26 21 16 24 28 27 19 25 17 
26 23 17 25 27 22 19 28 21 20 18 24 30 16 29 
16 19 30 17 27 20 25 23 26 18 21 28 22 24 29 
18 28 17 21 22 16 23 19 25 29 30 20 26 24 27 
18 19 28 16 29 26 20 25 23 24 30 17 22 21 27 
21 17 16 25 28 22 30 24 29 18 19 26 20 27 23 
16 23 17 18 20 27 29 22 24 19 28 30 25 26 21 
20 19 30 27 25 16 28 29 18 17 21 26 22 24 23 
24 20 21 17 16 29 23 30 18 28 22 27 26 19 25 
17 27 29 16 30 20 21 19 28 18 22 23 26 25 24 
25 28 18 22 24 23 19 26 30 21 29 27 20 17 16 
30 26 16 28 20 22 19 24 21 17 23 18 27 25 29 
22 18 26 16 28 21 30 25 27 29 24 17 19 23 20 
26 20 19 18 24 17 29 22 28 16 27 25 30 23 21 
7 1 11 2 6 15 10 4 9 14 12 8 13 3 5 
6 7 8 10 9 12 15 14 2 4 1 11 3 13 5 
14 5 12 15 10 4 9 11 13 2 1 6 8 3 7 
15 13 7 10 8 1 2 14 5 11 9 3 6 4 12 
4 8 1 3 9 15 2 12 6 7 5 11 10 14 13 
4 12 7 13 10 5 3 9 6 8 14 11 15 2 1 
3 2 10 11 9 4 8 14 13 12 6 15 1 7 5 
2 14 8 13 6 11 4 7 12 10 3 1 5 15 9 
7 13 8 12 4 9 5 15 6 10 11 14 3 2 1 
13 11 12 10 15 9 2 1 8 6 4 14 3 5 7 
8 12 1 6 10 3 15 11 4 14 2 13 7 9 5 
12 3 2 11 14 13 8 15 10 4 5 7 1 6 9 
13 10 3 15 8 9 4 7 14 2 11 5 6 1 12 
4 9 13 12 6 7 14 8 2 11 1 10 3 5 15 
10 3 15 11 1 4 13 8 6 5 7 2 9 14 12 
forbidden 1 20
forbidden 1 21
forbidden 1 25
forbidden 1 27
forbidden 2 19
forbidden 2 21
forbidden 2 23
forbidden 3 18
forbidden 3 25
forbidden 4 22
forbidden 4 28
forbidden 4 30
forbidden 5 19
forbidden 5 20
forbidden 5 21
forbidden 5 24
forbidden 5 25
forbidden 5 26
forbidden 6 25
forbidden 6 26
forbidden 6 29
forbidden 7 19
forbidden 7 23
forbidden 7 24
forbidden 7 26
forbidden 7 28
forbidden 8 16
forbidden 8 22
forbidden 8 25
forbidden 8 26
forbidden 9 21
forbidden 9 22
forbidden 9 24
forbidden 9 30
forbidden 10 21
forbidden 10 22
forbidden 10 25
forbidden 10 28
forbidden 11 17
forbidden 11 25
forbidden 11 28
forbidden 12 18
forbidden 12 30
forbidden 13 20
forbidden 13 22
forbidden 13 26
forbidden 13 29
forbidden 14 21
forbidden 14 28
forbidden 14 30
forbidden 15 19
forbidden 15 27