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