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