# This puzzle is solvable
7
1 2 3 5 27 6 7
24 25 26 4 28 29 8
23 40 41 42 43 9 0
22 39 48 46 31 30 10
21 38 47 45 44 32 11
20 37 36 35 34 33 12
19 18 17 16 15 14 13