C111123313121111121111331333133313331323221211113313113313331333133311222212231   >>    C11112331312111112111133133313331333132322121111331311331333133313331122221223   <<    C111123313121111121111331333133313331323221211113313113313331333133311222212233   >>      C111123313121111121111331333133313331323221211113313113313331333133311222212232   >>