using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
IEnumerable intSequence = Enumerable.Range(1, 10);
foreach (int i in intSequence)
Console.WriteLine(i);
double average = intSequence.Average();
Console.WriteLine("Here is the average: {0}", average);
}
}