D112211231223323131133131133132311213231323223313231311233132233111   >>    D11221123122332313113313113313231121323132322331323131123313223311   <<    D112211231223323131133131133132311213231323223313231311233132233113   >>      D112211231223323131133131133132311213231323223313231311233132233112   >>