C11112331312111112111133133313331333133313123313331333131322131121   >>    C1111233131211111211113313331333133313331312331333133313132213112   <<    C11112331312111112111133133313331333133313123313331333131322131123   >>      C11112331312111112111133133313331333133313123313331333131322131122   >>