02. Mountain Run

using System;

namespace _02._Mountain_Run
{
    class Program
    {
        static void Main(string[] args)
        {
            double recordTime = double.Parse(Console.ReadLine());
            double distance = double.Parse(Console.ReadLine());
            double timePerMeter = double.Parse(Console.ReadLine());

            double totalTime = distance * timePerMeter;
            double delayTime = Math.Floor(distance / 50) * 30;
            double time = totalTime + delayTime;

            if (time < recordTime)
            {
                Console.WriteLine($"Yes! The new record is {time:f2} seconds.");
            }
            else
            {
                double needTime = time - recordTime;
                Console.WriteLine($"No! He was {needTime:F2} seconds slower.");
            }
        }
    }
}