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81 13 81 14 81 15 81 16 81 17 81 18 81 19 81 20 81 21 81 22 81 23 81 24 81 25 81 26 81 27 81 28 58457 58456 58455 58454 58453 58452 58451 58450 58449 58448 58447 58446 58445 58444 58443

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