using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
string[] presidents = {"G", "H", "a", "H", "over", "Jack"};
IEnumerable first = presidents.Take(5);
IEnumerable second = presidents.Skip(4);
IEnumerable intersect = first.Intersect(second);
Console.WriteLine("The count of the array is: " + presidents.Count());
Console.WriteLine("The count of the first sequence is: " + first.Count());
Console.WriteLine("The count of the second sequence is: " + second.Count());
Console.WriteLine("The count of the intersect sequence is: " + intersect.Count());
foreach (string name in intersect)
Console.WriteLine(name);
}
}