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89 4 89 5 89 6 89 7 89 8 89 9 90 0 90 1 90 2 90 3 90 4 1148 1147 1146 1145 1144 1143 1142 1141 1140 1139

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