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