C11112331312111112111133133313331333132323133313331312113313232111   >>    C1111233131211111211113313331333133313232313331333131211331323211   <<    C11112331312111112111133133313331333132323133313331312113313232113   >>      C11112331312111112111133133313331333132323133313331312113313232112   >>