C111112111133131121133133313331333133313331323133313331333133313222313232311   >>    C11111211113313112113313331333133313331333132313331333133313331322231323231   <<    C111112111133131121133133313331333133313331323133313331333133313222313232313   >>      C111112111133131121133133313331333133313331323133313331333133313222313232312   >>