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