% slitherlink 346 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/346.a.htm
slitherlink
medium-
10 10
.2..3.12.3
.222.32.2.
12...21.2.
3.......12
...21.....
2...312021
1.2.13.2..
33.3.2....
.......0..
.3.13.3.3.
