C13223313311212111133133313331323133313331323113313113313132313331211   >>    C1322331331121211113313331333132313331333132311331311331313231333121   <<    C13223313311212111133133313331323133313331323113313113313132313331213   >>      C13223313311212111133133313331323133313331323113313113313132313331212   >>