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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 9239 9238 9237 9236 9235 9234 9233 9232 9231 9230

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