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