2. Shopping

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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            double budget = double.Parse(Console.ReadLine());
            int choco = int.Parse(Console.ReadLine());
            double milk = double.Parse(Console.ReadLine());

            double priceChoco = choco * 0.65;
            double priceMilk = milk * 2.70;
            double tangerine = Math.Floor(choco * 0.65);
            double priceTangerine = tangerine * 0.20;
            double priceAll = priceChoco + priceMilk + priceTangerine;

            if (budget >= priceAll)
            {
                Console.WriteLine($"You got this, {budget - priceAll:f2} money left!");
            }
            else
            {
                Console.WriteLine($"Not enough money, you need {priceAll - budget:f2} more!");
            }
        }
    }
}