% slitherlink 545 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/545.a.htm
slitherlink
medium-
10 10
01....2..2
...10....3
..21..21..
3.3..2.31.
...322..0.
.3..032...
.31.2..1.0
..12..33..
3....10...
3..0....11
