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