using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Dictionary<int, int> dict = new Dictionary<int, int>();

        Random rand = new Random();

        Console.WriteLine("Select a number from 1 to 20");

        string input = Console.ReadLine();

        for(int i = 0; i < 10; i++)

        {

            int num = rand.Next(1,21);

            int money = rand.Next(1,10001);

            while(dict.ContainsKey(num))

                num = rand.Next(1,21);

            dict.Add(num, money);

        }

        int number;

        bool success = int.TryParse(input, out number);

        if(dict.ContainsKey(number))

        {

            int prize = 0;

            dict.TryGetValue(number, out prize);

            Console.WriteLine("You earned {0} dollars!", prize);

        }

        else

        {

            Console.WriteLine("BANG! You die!");

        }

    }

}