C11112331312111112111133133313331333133313331333133313331333133313231122222231   >>    C1111233131211111211113313331333133313331333133313331333133313331323112222223   <<    C11112331312111112111133133313331333133313331333133313331333133313231122222233   >>      C11112331312111112111133133313331333133313331333133313331333133313231122222232   >>