D112211231223323131232313232233131133132313232113313113313223321   >>    D11221123122332313123231323223313113313231323211331311331322332   <<    D112211231223323131232313232233131133132313232113313113313223323   >>      D112211231223323131232313232233131133132313232113313113313223322   >>