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