D112211231223323131232313232233132322121111331313221323132313231323221221   >>    D11221123122332313123231323223313232212111133131322132313231323132322122   <<    D112211231223323131232313232233132322121111331313221323132313231323221223   >>      D112211231223323131232313232233132322121111331313221323132313231323221222   >>