public void Test2()
 {
     Assert.AreEqual(-1, PlayingWithNumbers.digPow(92, 1));
 }
 public void Test3()
 {
     Assert.AreEqual(51, PlayingWithNumbers.digPow(46288, 3));
 }
 public void Test1()
 {
     Assert.AreEqual(1, PlayingWithNumbers.digPow(89, 1));
 }