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