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81 7 81 8 81 9 82 0 82 1 82 2 82 3 82 4 82 5 82 6 82 7 1376 1375 1374 1373 1372 1371 1370 1369 1368 1367

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