C111112111133131121133133313331333121111133313331333133322331323323231111   >>    C11111211113313112113313331333133312111113331333133313332233132332323111   <<    C111112111133131121133133313331333121111133313331333133322331323323231113   >>      C111112111133131121133133313331333121111133313331333133322331323323231112   >>