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