% slitherlink 403 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/403.a.htm
slitherlink
medium-
10 10
..2.2..333
2...32..2.
3..22.32..
12.2.2..1.
...1..3.23
1.2.2.32.2
.321213.3.
3.........
2.1..2..2.
.....1.3.3
