C111123313121111121111331333133313331323232133113313231333131133113313223121   >>    C11112331312111112111133133313331333132323213311331323133313113311331322312   <<    C111123313121111121111331333133313331323232133113313231333131133113313223123   >>      C111123313121111121111331333133313331323232133113313231333131133113313223122   >>