C13223313311212111133133313331333133313232233131333132323321221   >>    C1322331331121211113313331333133313331323223313133313232332122   <<    C13223313311212111133133313331333133313232233131333132323321223   >>      C13223313311212111133133313331333133313232233131333132323321222   >>