C11112331312111112111133133313331333132323213331333133313332313331323133321311   >>    C1111233131211111211113313331333133313232321333133313331333231333132313332131   <<    C11112331312111112111133133313331333132323213331333133313332313331323133321313   >>      C11112331312111112111133133313331333132323213331333133313332313331323133321312   >>