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