C13223313311212111133133313331323133313331323121212111133132211231   >>    C1322331331121211113313331333132313331333132312121211113313221123   <<    C13223313311212111133133313331323133313331323121212111133132211233   >>      C13223313311212111133133313331323133313331323121212111133132211232   >>