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