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88 55 88 56 88 57 88 58 88 59 88 60 88 61 88 62 88 63 88 64 88 65 6571 6570 6569 6568 6567 6566 6565 6564 6563 6562

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