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72 81 72 82 72 83 72 84 72 85 72 86 72 87 72 88 72 89 72 90 72 91 36718 36717 36716 36715 36714 36713 36712 36711 36710 36709

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