D233123313113313132313231311112331323221323223313232233133112323132312121   >>    D23312331311331313231323131111233132322132322331323223313311232313231212   <<    D233123313113313132313231311112331323221323223313232233133112323132312123   >>      D233123313113313132313231311112331323221323223313232233133112323132312122   >>