C13223313311212111133133313331323133313331323113313331311332213121   >>    C1322331331121211113313331333132313331333132311331333131133221312   <<    C13223313311212111133133313331323133313331323113313331311332213123   >>      C13223313311212111133133313331323133313331323113313331311332213122   >>