C11112331312111112111133133313331333133313331333133313331333131122212312111   >>    C1111233131211111211113313331333133313331333133313331333133313112221231211   <<    C11112331312111112111133133313331333133313331333133313331333131122212312113   >>      C11112331312111112111133133313331333133313331333133313331333131122212312112   >>