using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        int[] numbers = {1, 11, 3, 19, 41, 65, 19};

        var onlyOdd = numbers.All(n => n % 2 == 1);

        Console.WriteLine("The list contains only odd numbers: {0}", onlyOdd);

    }

}