C22212323232133313113313331333132313331323331123231323323211223111   >>    C2221232323213331311331333133313231333132333112323132332321122311   <<    C22212323232133313113313331333132313331323331123231323323211223113   >>      C22212323232133313113313331333132313331323331123231323323211223112   >>