TrafficPrice

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

namespace demo2
{
    class Program
    {
        static void Main(string[] args)
        {
            double kilometers = double.Parse(Console.ReadLine());
            string shift = Console.ReadLine().ToLower();
            double price = 0;

            if (kilometers >= 100)
            {
                price = kilometers * 0.06;
                Console.WriteLine(price);
            }
            else if (kilometers >= 20)
            {
                price = kilometers * 0.09;
                Console.WriteLine(price);
            }
            else if (kilometers < 20)
            {
                if (shift == "day")
                {
                    price = (kilometers * 0.79) + 0.70;
                }
                else
                {
                    price = (kilometers * 0.90) + 0.70;
                }
                Console.WriteLine(price);
            }
        }
    }
}