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51 97 51 98 51 99 52 00 52 01 52 02 52 03 52 04 52 05 52 06 52 07 37513 37512 37511 37510 37509 37508 37507 37506 37505 37504

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