C11112331312111112111133133313331333133313123313331322132232331   >>    C1111233131211111211113313331333133313331312331333132213223233   <<    C11112331312111112111133133313331333133313123313331322132232333   >>      C11112331312111112111133133313331333133313123313331322132232332   >>