gistfile1.txt

using System;

namespace HW_02
{
    internal class Program
    {
        static void Main(string[] args)
        {
            const string commandExit = "q";

            bool isWork = true;
            bool isGuess;
            double probable = 0.5d;

            string choiceOfSide;
            string command;

            Random random = new Random();
            double chance;

            while (isWork)
            {
                Console.WriteLine("Введите Орел или Решка");

                choiceOfSide =  Console.ReadLine().ToLower();

                chance = random.NextDouble();

                if (chance <= probable)
                    isGuess = true;
                else 
                    isGuess = false;

                if (isGuess)
                    Console.WriteLine("Поздравляю ты угадал");
                else
                    Console.WriteLine("Ты не угадал");

                Console.WriteLine("Что бы закончить игру введи q");
                
                command = Console.ReadLine();

                if (command == commandExit) 
                    isWork = false;              
            }
        }
    }
}