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