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