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52 2 52 3 52 4 52 5 52 6 52 7 52 8 52 9 53 0 53 1 53 2 1173 1172 1171 1170 1169 1168 1167 1166 1165 1164

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