C13223313311212111133133313331333133313232233133313331323112211   >>    C1322331331121211113313331333133313331323223313331333132311221   <<    C13223313311212111133133313331333133313232233133313331323112213   >>      C13223313311212111133133313331333133313232233133313331323112212   >>