C111123313121111121111331333133313331333131233133313221311222121   >>    C11112331312111112111133133313331333133313123313331322131122212   <<    C111123313121111121111331333133313331333131233133313221311222123   >>      C111123313121111121111331333133313331333131233133313221311222122   >>