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