C111112111133131121133133313331333132311211312111133132233132313223323112111   >>    C11111211113313112113313331333133313231121131211113313223313231322332311211   <<    C111112111133131121133133313331333132311211312111133132233132313223323112113   >>      C111112111133131121133133313331333132311211312111133132233132313223323112112   >>