D121213233313223313132322231323132313231333132233132313311232311331   >>    D12121323331322331313232223132313231323133313223313231331123231133   <<    D121213233313223313132322231323132313231333132233132313311232311333   >>      D121213233313223313132322231323132313231333132233132313311232311332   >>