C11112331312111112111133132313331333133313232213331322122332311   >>    C1111233131211111211113313231333133313331323221333132212233231   <<    C11112331312111112111133132313331333133313232213331322122332313   >>      C11112331312111112111133132313331333133313232213331322122332312   >>