C11112331312111112111133133313331333132323213331333133313111333231323231   >>    C1111233131211111211113313331333133313232321333133313331311133323132323   <<    C11112331312111112111133133313331333132323213331333133313111333231323233   >>      C11112331312111112111133133313331333132323213331333133313111333231323232   >>