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