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