C111112111133131121133133313331333133313331332133313331333131223231   >>    C11111211113313112113313331333133313331333133213331333133313122323   <<    C111112111133131121133133313331333133313331332133313331333131223233   >>      C111112111133131121133133313331333133313331332133313331333131223232   >>