using System;
using System.Collections;
using System.Linq;
public class Test {
public static void Main() {
Random random = new Random();
var values = Enumerable
.Range(1, 20)
.Select(n => random.Next(1, 50))
.ToArray();
var output = string.Join(
Environment.NewLine,
values.Where(x => x % 2 == 0)
);
Console.WriteLine(output);
}
}
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