C2221232323213331311331333133313231333132313232313123232231322311   >>    C222123232321333131133133313331323133313231323231312323223132231   <<    C2221232323213331311331333133313231333132313232313123232231322313   >>      C2221232323213331311331333133313231333132313232313123232231322312   >>