The element operators extract one element from the input sequence

   
 
//First, Last, Single, and ElementAt

using System;
using System.Collections.Generic;
using System.Linq;
public class MainClass {
    public static void Main() {

        int[] numbers = { 10, 9, 8, 7, 6 };
        int firstNumber = numbers.First();    
        int lastNumber = numbers.Last();      
        int secondNumber = numbers.ElementAt(1);
        int lowestNumber = numbers.OrderBy(n => n).First();
    }
}