C133323133112111133133313331333133313233213331333131133133313221212121   >>    C13332313311211113313331333133313331323321333133313113313331322121212   <<    C133323133112111133133313331333133313233213331333131133133313221212123   >>      C133323133112111133133313331333133313233213331333131133133313221212122   >>