using System;

using System.Collections.Generic;

using System.Linq;

​

public static class PrintingArray

{

    public static void PrintArrayLambda(this List<int> numbers)

    {

        var numbersDivided = numbers.FindAll((i) => (i % 7 == 0 && i % 3 == 0));

        Print(numbersDivided);

    }

    public static void Print(IEnumerable<int> numbersDivided)

    {

        foreach (int number in numbersDivided)

        {

            Console.Write(number + " ");

        }

    }

    public static void PrintArrayLinq(this List<int> numbers)

    {

        var numbersDivided =

        from number in numbers

        where (number % 3 == 0 && number % 7 == 0)

        select number;

        Print(numbersDivided);

    }

}

​

public class Program

{

    public static void Main()

    {

        List<int> numbers = new List<int>();

        for (int i = 5; i < 100; i++)

        {

            numbers.Add(i);

        }

        numbers.PrintArrayLinq();

        Console.WriteLine();

        numbers.PrintArrayLambda();

    }

}

​

/*Write a program that prints to the console all numbers from a given array

(or list), that are multiples of 7 and 3 at the same time. Use the builtin

extension methods with lambda expressions and then rewrite the

same using a LINQ query.*/