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