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