C111123313121111121111331333133313331333133313331333133313233313121121   >>    C11112331312111112111133133313331333133313331333133313331323331312112   <<    C111123313121111121111331333133313331333133313331333133313233313121123   >>      C111123313121111121111331333133313331333133313331333133313233313121122   >>