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70 9 71 0 71 1 71 2 71 3 71 4 71 5 71 6 71 7 71 8 71 9 72 0 72 1 72 2 72 3 72 4 72 5 72 6 72 7 72 8 72 9 73 0 73 1 57820 57819 57818 57817 57816 57815 57814 57813 57812 57811 57810 57809 57808 57807 57806 57805 57804 57803 57802 57801 57800 57799

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