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12 72 12 73 12 74 12 75 12 76 12 77 12 78 12 79 12 80 12 81 12 82 1378 1377 1376 1375 1374 1373 1372 1371 1370 1369

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