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