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72 68 72 69 72 70 72 71 72 72 72 73 72 74 72 75 72 76 72 77 72 78 36712 36711 36710 36709 36708 36707 36706 36705 36704 36703

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