C13332313311211113313331333133313331323133313331333133313113313232331211   >>    C1333231331121111331333133313331333132313331333133313331311331323233121   <<    C13332313311211113313331333133313331323133313331333133313113313232331213   >>      C13332313311211113313331333133313331323133313331333133313113313232331212   >>