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