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29 4 29 5 29 6 29 7 29 8 29 9 30 0 30 1 30 2 30 3 30 4 30 5 30 6 30 7 30 8 30 9 1396 1395 1394 1393 1392 1391 1390 1389 1388 1387 1386 1385 1384 1383 1382

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