% slitherlink 123 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/123.a.htm
slitherlink
medium-
18 10
12.2.0.2.2.0...11.
.3...3..3.1.3.3..3
.10.....0...0.....
3..3...2.3.1.3...1
.22....02..011....
....232..33....33.
3...2.3.1.2...2..1
.....3...2.....33.
3..2.2.1.3..3...0.
.02...1.0.3.0.3.32
