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89 0 89 1 89 2 89 3 89 4 89 5 89 6 89 7 89 8 89 9 90 0 90 1 90 2 90 3 90 4 90 5 321 320 319 318 317 316 315 314 313 312 311 310 309 308 307

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