using System;

using System.Collections;

using System.IdentityModel.Tokens.Jwt;

using Microsoft.IdentityModel.Tokens;

public class Program

{   

    private static readonly Dictionary<string, (string password, string role)> userCredentials = new Dictionary<string, (string, string)>

    {

        { "admin", ("password1", "Admin") },

        { "user2", ("password2", "User") }

    };

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine("Enter your username:");

        string username = Console.ReadLine();

        Console.WriteLine("Hello, " + username + "!");

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

        string password = Console.ReadLine();

        if (userCredentials.TryGetValue(username, out string value)) {

            Console.WriteLine(value); // Output: Value2

        } else {

            Console.WriteLine("User not found");

        }

    }

}