C111123313121111121111331333133313331323231333133313331311313331333131112311   >>    C11112331312111112111133133313331333132323133313331333131131333133313111231   <<    C111123313121111121111331333133313331323231333133313331311313331333131112313   >>      C111123313121111121111331333133313331323231333133313331311313331333131112312   >>