D23312331311331313231323131111233132322132322331323223313311212111   >>    D2331233131133131323132313111123313232213232233132322331331121211   <<    D23312331311331313231323131111233132322132322331323223313311212113   >>      D23312331311331313231323131111233132322132322331323223313311212112   >>