C111123313121111121111331333133313331323232133313331312213233311231   >>    C11112331312111112111133133313331333132323213331333131221323331123   <<    C111123313121111121111331333133313331323232133313331312213233311233   >>      C111123313121111121111331333133313331323232133313331312213233311232   >>