C11112331312111112111133133313331333132323133313331311213331312231   >>    C1111233131211111211113313331333133313232313331333131121333131223   <<    C11112331312111112111133133313331333132323133313331311213331312233   >>      C11112331312111112111133133313331333132323133313331311213331312232   >>