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52 51 0 52 51 1 52 51 2 52 51 3 52 51 4 52 51 5 52 51 6 52 51 7 52 51 8 52 51 9 52 52 0 52 52 1 52 52 2 52 52 3 52 52 4 52 52 5 52 52 6 52 52 7 52 52 8 52 52 9 52 53 0 52 53 1 52 53 2 16897 16896 16895 16894 16893 16892 16891 16890 16889 16888 16887 16886 16885 16884 16883 16882 16881 16880 16879 16878 16877 16876

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