D112211231223323131232313232233131133132313231133132313232213232211   >>    D11221123122332313123231323223313113313231323113313231323221323221   <<    D112211231223323131232313232233131133132313231133132313232213232213   >>      D112211231223323131232313232233131133132313231133132313232213232212   >>