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