% slitherlink 378 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/378.a.htm
slitherlink
medium
16 12
..22..31.332.1..
2.213.23...2...2
32.1..121.222...
....3.13.22212.1
2.....23...2...3
0..3...21.1.....
..2.02..3..2.33.
2223..21...13...
3.3.22..1.2.1...
..1..2.3.3......
.32..3.1.0..132.
.2..31...3.1...3
