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77 6 77 7 77 8 77 9 78 0 78 1 78 2 78 3 78 4 78 5 78 6 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008

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