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57 56 57 57 57 58 57 59 57 60 57 61 57 62 57 63 57 64 57 65 57 66 37224 37223 37222 37221 37220 37219 37218 37217 37216 37215

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