D23312331311331313231323131111233132322132322331323223313311212321   >>    D2331233131133131323132313111123313232213232233132322331331121232   <<    D23312331311331313231323131111233132322132322331323223313311212323   >>      D23312331311331313231323131111233132322132322331323223313311212322   >>