C13223313311212111133133313331323133313331323113313112113121211   >>    C1322331331121211113313331333132313331333132311331311211312121   <<    C13223313311212111133133313331323133313331323113313112113121213   >>      C13223313311212111133133313331323133313331323113313112113121212   >>