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