C111112111133131121133133313331333133313331323133313331333133313211232331231   >>    C11111211113313112113313331333133313331333132313331333133313331321123233123   <<    C111112111133131121133133313331333133313331323133313331333133313211232331233   >>      C111112111133131121133133313331333133313331323133313331333133313211232331232   >>