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77 4 77 5 77 6 77 7 77 8 77 9 78 0 78 1 78 2 78 3 78 4 1143 1142 1141 1140 1139 1138 1137 1136 1135 1134

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