using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
public class MainClass {
public static void Main() {
int[] numbers = new int[] { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };
var lowNumbers =
from n in numbers
where n <= 3
select n;
Console.WriteLine("First run numbers <= 3:");
foreach (int n in lowNumbers) {
Console.WriteLine(n);
}
for (int i = 0; i < 10; i++) {
numbers[i] = -numbers[i];
}
Console.WriteLine("Second run numbers <= 3:");
foreach (int n in lowNumbers) {
Console.WriteLine(n);
}
}
}