C22213331333133313112331323133313331333133313112331333133112111133231123311   >>    C2221333133313331311233132313331333133313331311233133313311211113323112331   <<    C22213331333133313112331323133313331333133313112331333133112111133231123313   >>      C22213331333133313112331323133313331333133313112331333133112111133231123312   >>