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