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87 47 87 48 87 49 87 50 87 51 87 52 87 53 87 54 87 55 87 56 87 57 9199 9198 9197 9196 9195 9194 9193 9192 9191 9190

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