C111112111133131121133133313331333133313331323133313331333133313331312213112221   >>    C11111211113313112113313331333133313331333132313331333133313331333131221311222   <<    C111112111133131121133133313331333133313331323133313331333133313331312213112223   >>      C111112111133131121133133313331333133313331323133313331333133313331312213112222   >>