% slitherlink 277 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/277.a.htm
slitherlink
medium
16 12
0...21..3.3..3..
..0.1.33.2...022
....1.1..1.12...
30..1..22....2.3
...0.32.3.0.3...
.1.......2......
2..123.2.1..333.
21..1.2..11.11..
..1..3.3...2....
3...1..10.2..3.3
1..1..1..3.11..2
.33.232.11....3.
