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31 41 3 31 41 4 31 41 5 31 41 6 31 41 7 31 41 8 31 41 9 31 42 0 31 42 1 31 42 2 31 42 3 31 42 4 31 42 5 31 42 6 31 42 7 31 42 8 38397 38396 38395 38394 38393 38392 38391 38390 38389 38388 38387 38386 38385 38384 38383

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid