C11112331312111112111133133313331333133313122111133133313113313331322211231   >>    C1111233131211111211113313331333133313331312211113313331311331333132221123   <<    C11112331312111112111133133313331333133313122111133133313113313331322211233   >>      C11112331312111112111133133313331333133313122111133133313113313331322211232   >>