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55 6 55 7 55 8 55 9 56 0 56 1 56 2 56 3 56 4 56 5 56 6 56 7 56 8 56 9 57 0 57 1 1415 1414 1413 1412 1411 1410 1409 1408 1407 1406 1405 1404 1403 1402 1401

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