safari

using System;

namespace exampreparation
{
    class exam
    {
        static void Main(string[] args)
        {
            double budget = double.Parse(Console.ReadLine());
            double gas = double.Parse(Console.ReadLine());
            string weekend = Console.ReadLine();

            double gasSum = gas * 2.10;
            double tourGuide = gasSum + 100;

            if (weekend == "Saturday")
            {
                tourGuide *= 0.90;
            }
            else
            {
                tourGuide *= 0.80;
            }

            if (budget >= tourGuide)
            {
                Console.WriteLine($"Safari time! Money left: {budget-tourGuide:f2} lv.");
            }
            else
            {
                Console.WriteLine($"Not enough money! Money needed: {tourGuide-budget:f2} lv.");
            }
        }
    }
}