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