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