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