% slitherlink 263 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/263.a.htm
slitherlink
medium-
10 10
3.3.3.33..
...3..1..2
311.2.3.32
.......0..
2..3.3....
311.1...30
2..3..3...
....2....1
22.3..0..3
33..3.3.32
