C13223313311212111133133313331323133313331323113313232213231121   >>    C1322331331121211113313331333132313331333132311331323221323112   <<    C13223313311212111133133313331323133313331323113313232213231123   >>      C13223313311212111133133313331323133313331323113313232213231122   >>