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