C13223313311212111133133313331333133313232233133313331232322221   >>    C1322331331121211113313331333133313331323223313331333123232222   <<    C13223313311212111133133313331333133313232233133313331232322223   >>      C13223313311212111133133313331333133313232233133313331232322222   >>