C111112111133131121133133313331333133313331323133313331333133313112331322221   >>    C11111211113313112113313331333133313331333132313331333133313331311233132222   <<    C111112111133131121133133313331333133313331323133313331333133313112331322223   >>      C111112111133131121133133313331333133313331323133313331333133313112331322222   >>