C11112331312111112111133133313331333132323213331333132322331323122132223131   >>    C1111233131211111211113313331333133313232321333133313232233132312213222313   <<    C11112331312111112111133133313331333132323213331333132322331323122132223133   >>      C11112331312111112111133133313331333132323213331333132322331323122132223132   >>