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87 40 87 41 87 42 87 43 87 44 87 45 87 46 87 47 87 48 87 49 87 50 9240 9239 9238 9237 9236 9235 9234 9233 9232 9231

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