C111112111133131121133133313331333132333131131211113313232233222311   >>    C11111211113313112113313331333133313233313113121111331323223322231   <<    C111112111133131121133133313331333132333131131211113313232233222313   >>      C111112111133131121133133313331333132333131131211113313232233222312   >>