% hashiwokakero 21 by Otto Janko, http://www.janko.at/Raetsel/Hashi/021.a.htm
hashiwokakero
easy
10 10
4.4...1.1.
..........
6.5.....3.
.........1
....3.3...
3....1...2
......2...
1........2
.....3..3.
2.4.4.2..2
