C13332313311211113313331333133313331323133313331333133313231323211231211   >>    C1333231331121111331333133313331333132313331333133313331323132321123121   <<    C13332313311211113313331333133313331323133313331333133313231323211231213   >>      C13332313311211113313331333133313331323133313331333133313231323211231212   >>