C22212323232133313113313331333132313331323331123231323323231213233231   >>    C2221232323213331311331333133313231333132333112323132332323121323323   <<    C22212323232133313113313331333132313331323331123231323323231213233233   >>      C22212323232133313113313331333132313331323331123231323323231213233232   >>