D22331323211231212121323132313311232313132313331323132233132211   >>    D2233132321123121212132313231331123231313231333132313223313221   <<    D22331323211231212121323132313311232313132313331323132233132213   >>      D22331323211231212121323132313311232313132313331323132233132212   >>