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