D112211231223323131232313232233132322331333132323132313231311211   >>    D11221123122332313123231323223313232233133313232313231323131121   <<    D112211231223323131232313232233132322331333132323132313231311213   >>      D112211231223323131232313232233132322331333132323132313231311212   >>