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21 03 21 04 21 05 21 06 21 07 21 08 21 09 21 10 21 11 21 12 21 13 21 14 21 15 21 16 21 17 21 18 38907 38906 38905 38904 38903 38902 38901 38900 38899 38898 38897 38896 38895 38894 38893

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