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