D121213233313223313132322231323132313331323132233132313132312111   >>    D12121323331322331313232223132313231333132313223313231313231211   <<    D121213233313223313132322231323132313331323132233132313132312113   >>      D121213233313223313132322231323132313331323132233132313132312112   >>