D121213233313223313132322231323132313331323132233132313132322112331   >>    D12121323331322331313232223132313231333132313223313231313232211233   <<    D121213233313223313132322231323132313331323132233132313132322112333   >>      D121213233313223313132322231323132313331323132233132313132322112332   >>