C11112331312111112111133133313331333132322121111331311331333131131121   >>    C1111233131211111211113313331333133313232212111133131133133313113112   <<    C11112331312111112111133133313331333132322121111331311331333131131123   >>      C11112331312111112111133133313331333132322121111331311331333131131122   >>