C11112331312111112111133133313331333133112111113331333133313121111331323223331   >>    C1111233131211111211113313331333133313311211111333133313331312111133132322333   <<    C11112331312111112111133133313331333133112111113331333133313121111331323223333   >>      C11112331312111112111133133313331333133112111113331333133313121111331323223332   >>