C13223313311212111133133313331323133313331323113313331333133331231   >>    C1322331331121211113313331333132313331333132311331333133313333123   <<    C13223313311212111133133313331323133313331323113313331333133331233   >>      C13223313311212111133133313331323133313331323113313331333133331232   >>