% slitherlink 354 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/354.a.htm
slitherlink
medium
16 12
3.3.132...2..23.
.....30...1...2.
1.33..2..3.3.3..
.12.2.2.3...20..
...322.0313.....
.3.2...23..1..1.
1....2....2.13.2
2.2...2..2...3.3
2.2..23...32.1.2
12322..21....3..
23..223.....22.3
...3...12.3.2.2.
