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