D1212121212131323223313233231323133313231323331311331323221232311111   >>    D121212121213132322331323323132313331323132333131133132322123231111   <<    D1212121212131323223313233231323133313231323331311331323221232311113   >>      D1212121212131323223313233231323133313231323331311331323221232311112   >>