02.Ilidan

using System;

namespace Illidan
{
    class Program
    {
        static void Main()
        {
            int players = int.Parse(Console.ReadLine());
            int playerPower = int.Parse(Console.ReadLine());
            int ilidanHealth = int.Parse(Console.ReadLine());
            long totalPower = playerPower * players;
            long delta = Math.Abs(totalPower - ilidanHealth);
            if (totalPower >= ilidanHealth)
            {
                Console.WriteLine($"Illidan has been slain! You defeated him with {delta} points.");
            }
            else
            {
                Console.WriteLine($"You are not prepared! You need {delta} more points.");
            }

        }
    }
}