C111123313121111121111331333133313331333131233133313232313332333131321   >>    C11112331312111112111133133313331333133313123313331323231333233313132   <<    C111123313121111121111331333133313331333131233133313232313332333131323   >>      C111123313121111121111331333133313331333131233133313232313332333131322   >>