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