C2221333133313331311233132313331333133313331323232133313132213121   >>    C222133313331333131123313231333133313331333132323213331313221312   <<    C2221333133313331311233132313331333133313331323232133313132213123   >>      C2221333133313331311233132313331333133313331323232133313132213122   >>