Scheme 3 Task 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication56
{
    class Program
    {
        static void Main(string[] args)
        {
            bool flag = true;
            while (flag)
            {
                Console.WriteLine("Please enter which di you would like to use");
                int dice = Convert.ToInt32(Console.ReadLine());

                if (dice == 4)
                {
                    Console.WriteLine("You have chosen to use the 4 sided dice");
                    Random rnd = new Random();
                    int number = rnd.Next(1, 5);
                    Console.WriteLine("Your number is " + number);
                }
                if (dice == 6)
                {
                    Console.WriteLine("You have chosen to use the 6 sided dice");
                    Random rnd = new Random();
                    int number = rnd.Next(1, 7);
                    Console.WriteLine("Your number is " + number);
                }
                if (dice == 12)
                {
                    Console.WriteLine("You have chosen to use the 12 sided dice");
                    Random rnd = new Random();
                    int number = rnd.Next(1, 13);
                    Console.WriteLine("Your number is " + number);
                }
                Console.WriteLine("Do you want to role again?");
                String decision = Console.ReadLine();
                if (decision == "yes")
                {
                    flag = true;
                }
                else
                {
                    flag = false;
                }
            }

        }
    }
}