D121213233313223313132322231323132333132313133313223313232111111   >>    D12121323331322331313232223132313233313231313331322331323211111   <<    D121213233313223313132322231323132333132313133313223313232111113   >>      D121213233313223313132322231323132333132313133313223313232111112   >>