C13223313311212111133133313331333133313232233133313331333221333133311211231   >>    C1322331331121211113313331333133313331323223313331333133322133313331121123   <<    C13223313311212111133133313331333133313232233133313331333221333133311211233   >>      C13223313311212111133133313331333133313232233133313331333221333133311211232   >>