demo/grid_ugraph_demo.in
changeset 2279 2c3fee01d3ed
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     2 1 1 10 8
       
     3 ..X....X.X
       
     4 .XX.X.XX..
       
     5 ....X..XX.
       
     6 XXXXXX.X..
       
     7 .........X
       
     8 .X.XXXXXXX
       
     9 .X...XX...
       
    10 .X.X....X.