C111112111133131121133133313331333133313331332133313331333133313113313231323211   >>    C11111211113313112113313331333133313331333133213331333133313331311331323132321   <<    C111112111133131121133133313331333133313331332133313331333133313113313231323213   >>      C111112111133131121133133313331333133313331332133313331333133313113313231323212   >>