using System;

public class Program

{

    public static void Main()

    {

​

        string[] userNames = new string[5];

        string[] passwords = new string[5];

        string name = "";

        string password = "";

​

        for (int count = 0; count <= 4; count++)

        {

            Console.WriteLine("Create your new user name: ");

            userNames[count] = Console.ReadLine();

            Console.WriteLine("Input your password: ");

            passwords[count] = Console.ReadLine();

        }

        Console.WriteLine("Input your user name: ");

        name = Console.ReadLine();

        int count1 = 0;

        while (name != userNames[count1])

        {

            count1++;

        }

        Console.WriteLine("Input your password: ");

        password = Console.ReadLine();

        if (password == passwords[count1])

        {

            Console.WriteLine("Welcome ");

        }

        else

        {

            Console.WriteLine("Password incorrect. ");

        }

    }

}