C111112111133131121133133313331333132311211312111133132233132223121   >>    C11111211113313112113313331333133313231121131211113313223313222312   <<    C111112111133131121133133313331333132311211312111133132233132223123   >>      C111112111133131121133133313331333132311211312111133132233132223122   >>