% slitherlink 652 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/652.a.htm
slitherlink
medium-
10 10
.3.3.2232.
.12.......
..22211...
12212...3.
.....211.3
120.2.3.2.
3.223..1.3
.222..32..
2.11322...
..3231222.
