namelessmike

  (1).UpTo(10).ForEach(x => Console.WriteLine(x));

  public static class IntExtensions {
      public static List<int> UpTo(this int start, int end) {
          var range = new List<int>();
          for(int i = start; i < end; i++) {
              range.Add(i);
          }
          return range;
      }
  }