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