C1111121111331311211331333133313331333131211111333132213331323132312213123121   >>    C111112111133131121133133313331333133313121111133313221333132313231221312312   <<    C1111121111331311211331333133313331333131211111333132213331323132312213123123   >>      C1111121111331311211331333133313331333131211111333132213331323132312213123122   >>