% nurikabe, nikoli sample problem 5 by Miya
nurikabe
medium
18 10
.1.1....1.....1...
....5....2.....1..
........1.....1...
.....5.........1..
1.1.......4...1...
.1.....3.....7....
..3..............6
....4...2..4......
......5.........5.
.1...........5....
