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53 37 53 38 53 39 53 40 53 41 53 42 53 43 53 44 53 45 53 46 53 47 37408 37407 37406 37405 37404 37403 37402 37401 37400 37399

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