% slitherlink 57 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/057.a.htm
slitherlink
medium
9 9
22....232
3.112..1.
.32....22
.2..2....
...122.2.
1.1.22321
.11....2.
........3
.20.322..
