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77 7 77 8 77 9 78 0 78 1 78 2 78 3 78 4 78 5 78 6 78 7 1189 1188 1187 1186 1185 1184 1183 1182 1181 1180

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