6 5
....o-o-o-o
....|.....|
....o.o...o
....|.|...|
o-o-o-o.o-o
|.....|.|..
o...o-o.o..
|.......|..
o-o-o-o-o..

6 5
....o-o-o-o
....|.....|
....o.o-o.o
....|.|...|
o-o-o-o.o-o
|.....|.|..
o.....o.o..
|.......|..
o-o-o-o-o..