D22331311311331323132233131133131232333132313231322331323133313221212121   >>    D2233131131133132313223313113313123233313231323132233132313331322121212   <<    D22331311311331323132233131133131232333132313231322331323133313221212123   >>      D22331311311331323132233131133131232333132313231322331323133313221212122   >>