C111112111133131121133133313331333131133132323213331311331323212121   >>    C11111211113313112113313331333133313113313232321333131133132321212   <<    C111112111133131121133133313331333131133132323213331311331323212123   >>      C111112111133131121133133313331333131133132323213331311331323212122   >>