C111112111133131121133133313331333133313331323133313331333133313231121133131111   >>    C11111211113313112113313331333133313331333132313331333133313331323112113313111   <<    C111112111133131121133133313331333133313331323133313331333133313231121133131113   >>      C111112111133131121133133313331333133313331323133313331333133313231121133131112   >>