C111123313121111121111331333133313331333133313331333133312111133132233313233311   >>    C11112331312111112111133133313331333133313331333133313331211113313223331323331   <<    C111123313121111121111331333133313331333133313331333133312111133132233313233313   >>      C111123313121111121111331333133313331333133313331333133312111133132233313233312   >>