D121213233313223313132322231323132333132313133313223313231323132211   >>    D12121323331322331313232223132313233313231313331322331323132313221   <<    D121213233313223313132322231323132333132313133313223313231323132213   >>      D121213233313223313132322231323132333132313133313223313231323132212   >>