C13223313311212111133133313331323133313331323113313231333232211   >>    C1322331331121211113313331333132313331333132311331323133323221   <<    C13223313311212111133133313331323133313331323113313231333232213   >>      C13223313311212111133133313331323133313331323113313231333232212   >>