private PotvinPairwiseOneLevelExchangeMainpulator(PotvinPairwiseOneLevelExchangeMainpulator original, Cloner cloner)
     : base(original, cloner)
 {
 }
 private PotvinPairwiseOneLevelExchangeMainpulator(PotvinPairwiseOneLevelExchangeMainpulator original, Cloner cloner)
   : base(original, cloner) {
 }