C111123313121111121111331333133313331333131233133313113313331333213111   >>    C11112331312111112111133133313331333133313123313331311331333133321311   <<    C111123313121111121111331333133313331333131233133313113313331333213113   >>      C111123313121111121111331333133313331333131233133313113313331333213112   >>