Wedding Party

using System;

namespace WeddingParty
{
    class Program
    {
        static void Main(string[] args)
        {
            int guests = int.Parse(Console.ReadLine());
            int budget = int.Parse(Console.ReadLine());

            budget -= guests * 20;

            if (budget < 0)
            {
                Console.WriteLine($"They won't have enough money to pay the covert. They will need {Math.Abs(budget)} lv more.");
            }
            else
            {
                Console.WriteLine($"Yes! {Math.Round(0.40 * budget)} lv are for fireworks and {Math.Round(0.60 * budget)} lv are for donation.");
            }
        }
    }
}