C111112111133131121133133313331333133313331332133313331333133313233313321   >>    C11111211113313112113313331333133313331333133213331333133313331323331332   <<    C111112111133131121133133313331333133313331332133313331333133313233313323   >>      C111112111133131121133133313331333133313331332133313331333133313233313322   >>