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

namespace ConsoleApp9
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string userInput;
            bool isWork = true;
            string exitCommand = "exit";

            while (isWork)
            {
                Console.WriteLine($"Выполнение программы. Для выхода напишите {exitCommand}.");
                userInput = Console.ReadLine();

                if (userInput == exitCommand)
                {
                    isWork = false;
                }
            }
        }
    }
}