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