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