C11112331312111112111133133313331333133313112113313331333133313331333121211111   >>    C1111233131211111211113313331333133313331311211331333133313331333133312121111   <<    C11112331312111112111133133313331333133313112113313331333133313331333121211113   >>      C11112331312111112111133133313331333133313112113313331333133313331333121211112   >>