C11112331312111112111133133313331333133313123313331312111133232133221   >>    C1111233131211111211113313331333133313331312331333131211113323213322   <<    C11112331312111112111133133313331333133313123313331312111133232133223   >>      C11112331312111112111133133313331333133313123313331312111133232133222   >>