using System;
using System.Linq;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            const int price_chocolate = 49;//цена за шоколад
            const int price_coffee = 20;//цена за кофе
            const int price_milk = 70;//цена за молоко
            Console.Write("Enter number Chocolate:");
            int choc = int.Parse(Console.ReadLine());
            Console.Write("Enter number Coffee:");
            int cof = int.Parse(Console.ReadLine());
            Console.Write("Enter number Milk:");
            int mil = int.Parse(Console.ReadLine());
            Console.WriteLine("Total amount = {0}",
            choc * price_chocolate + cof * price_coffee + mil * price_milk);

        }
    }