C111123313121111121111331333133313331333132232233132313113313232112311   >>    C11112331312111112111133133313331333133313223223313231311331323211231   <<    C111123313121111121111331333133313331333132232233132313113313232112313   >>      C111123313121111121111331333133313331333132232233132313113313232112312   >>