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88 4 88 5 88 6 88 7 88 8 88 9 89 0 89 1 89 2 89 3 89 4 89 5 89 6 89 7 89 8 89 9 1626 1625 1624 1623 1622 1621 1620 1619 1618 1617 1616 1615 1614 1613 1612

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