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87 63 87 64 87 65 87 66 87 67 87 68 87 69 87 70 87 71 87 72 87 73 9241 9240 9239 9238 9237 9236 9235 9234 9233 9232

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