C11112331312111112111133133313331333133313331333133313331333132333112333231   >>    C1111233131211111211113313331333133313331333133313331333133313233311233323   <<    C11112331312111112111133133313331333133313331333133313331333132333112333233   >>      C11112331312111112111133133313331333133313331333133313331333132333112333232   >>