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