C111112111133131121133133313331333133313331323133313331333133211113313123231   >>    C11111211113313112113313331333133313331333132313331333133313321111331312323   <<    C111112111133131121133133313331333133313331323133313331333133211113313123233   >>      C111112111133131121133133313331333133313331323133313331333133211113313123232   >>