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