C2221333133313331311233132313331333133313331322133313332313221221   >>    C222133313331333131123313231333133313331333132213331333231322122   <<    C2221333133313331311233132313331333133313331322133313332313221223   >>      C2221333133313331311233132313331333133313331322133313332313221222   >>