D33132211231323132313232332313232233132313232213331323133312121   >>    D3313221123132313231323233231323223313231323221333132313331212   <<    D33132211231323132313232332313232233132313232213331323133312123   >>      D33132211231323132313232332313232233132313232213331323133312122   >>