C111123313331323113313331333133313331122112312111133133313223331231   >>    C11112331333132311331333133313331333112211231211113313331322333123   <<    C111123313331323113313331333133313331122112312111133133313223331233   >>      C111123313331323113313331333133313331122112312111133133313223331232   >>