C1111121111331311211331333133313331323331311312111133132213223121   >>    C111112111133131121133133313331333132333131131211113313221322312   <<    C1111121111331311211331333133313331323331311312111133132213223123   >>      C1111121111331311211331333133313331323331311312111133132213223122   >>