C11112331312111112111133133313331333132323213331333133313332112323132313221   >>    C1111233131211111211113313331333133313232321333133313331333211232313231322   <<    C11112331312111112111133133313331333132323213331333133313332112323132313223   >>      C11112331312111112111133133313331333132323213331333133313332112323132313222   >>