C22212323232133313113313331333132313331323331123231323323231213233121   >>    C2221232323213331311331333133313231333132333112323132332323121323312   <<    C22212323232133313113313331333132313331323331123231323323231213233123   >>      C22212323232133313113313331333132313331323331123231323323231213233122   >>