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28 9 29 0 29 1 29 2 29 3 29 4 29 5 29 6 29 7 29 8 29 9 30 0 30 1 30 2 30 3 30 4 1345 1344 1343 1342 1341 1340 1339 1338 1337 1336 1335 1334 1333 1332 1331

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