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89 44 89 45 89 46 89 47 89 48 89 49 89 50 89 51 89 52 89 53 89 54 6540 6539 6538 6537 6536 6535 6534 6533 6532 6531

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