D22331311311331323132233131133131232333132313231313331323223313211   >>    D2233131131133132313223313113313123233313231323131333132322331321   <<    D22331311311331323132233131133131232333132313231313331323223313213   >>      D22331311311331323132233131133131232333132313231313331323223313212   >>