C111112111133131121133133313331333132213331333131133133313233313233121122322321   >>    C11111211113313112113313331333133313221333133313113313331323331323312112232232   <<    C111112111133131121133133313331333132213331333131133133313233313233121122322323   >>      C111112111133131121133133313331333132213331333131133133313233313233121122322322   >>