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