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