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51 87 51 88 51 89 51 90 51 91 51 92 51 93 51 94 51 95 51 96 51 97 37513 37512 37511 37510 37509 37508 37507 37506 37505 37504

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