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