using System;

namespace Tema_Silviu_Mariuta_Methods

{

    class Program

    {

        static void Swap(ref int[] a, ref int[] b)

        {

            int[] temp = a;

            a = b;

            b = temp;

        }

​

        static void Swap(ref string name, ref string anotherName)

        {

            string temp = name;

            name = anotherName;

            anotherName = temp;

        }

​

        static void Main(string[] args)

        {

            int[] a = new int[3];

​

            Console.WriteLine("Please enter three numbers (nine digits max): ");

​

            for (int i = 0; i < a.Length; i++)

            {

                a[i] = int.Parse(Console.ReadLine());

            }

​

            Console.WriteLine("Let's call them: \"Your FIRST numbers\".");

            Console.Write("\n");

​

            int[] b = new int[4];

​

            Console.WriteLine("Now please enter four numbers (nine digits max): ");

            for (int i = 0; i < b.Length; i++)

            {

                b[i] = int.Parse(Console.ReadLine());

​

            }

            Console.WriteLine("Let's call them: \"Your SECOND numbers\".");

            Console.WriteLine("\n");

            Console.WriteLine("Swapping... Swapping... Swapping...");

            Console.WriteLine("\n");

​

​

            Swap(ref a, ref b);

            Console.Write("Now your \"FIRST\" numbers are: ");

            foreach (int element in a)

            {

                Console.Write(element + "  ");

            }

            Console.WriteLine("\n");

​

            Console.Write("And your \"SECOND\" numbers are: ");

            foreach (int element in b)

            {

                Console.Write(element + "  ");

            }

            Console.WriteLine();

​

            Console.WriteLine("\n");

            Console.Write("Please enter a name: ");

            string name = Console.ReadLine();

            Console.Write("Let's say this is your name.");

            Console.WriteLine("\n");

​

            Console.Write("Please enter another name: ");

            string anotherName = Console.ReadLine();

            Console.Write("Let's say this is your middle-name.");

            Console.WriteLine("\n");

​

            Swap(ref name, ref anotherName);

            Console.WriteLine("Swapping... Swapping... Swapping...");

            Console.WriteLine();

            Console.WriteLine($"Now your first name is: {name}."); 

            Console.WriteLine($"And your middle-name is: {anotherName}.");

        }

    }

}