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79 9 80 0 80 1 80 2 80 3 80 4 80 5 80 6 80 7 80 8 80 9 1361 1360 1359 1358 1357 1356 1355 1354 1353 1352

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