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66 4 66 5 66 6 66 7 66 8 66 9 67 0 67 1 67 2 67 3 67 4 1375 1374 1373 1372 1371 1370 1369 1368 1367 1366

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