C11112331312111112111133133313331333133313331333133313331333133313222131231   >>    C1111233131211111211113313331333133313331333133313331333133313331322213123   <<    C11112331312111112111133133313331333133313331333133313331333133313222131233   >>      C11112331312111112111133133313331333133313331333133313331333133313222131232   >>