C111112111133131121133133313331333133313331323133313331333133313331211132221   >>    C11111211113313112113313331333133313331333132313331333133313331333121113222   <<    C111112111133131121133133313331333133313331323133313331333133313331211132223   >>      C111112111133131121133133313331333133313331323133313331333133313331211132222   >>