Transport Price

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

namespace PriceOfTransport
{
    class Program
    {
        static void Main(string[] args)
        {
            var nKilometer = double.Parse(Console.ReadLine());
            var choose = Console.ReadLine();


            if(choose == "day")
            {
                if (nKilometer < 20)
                {
                    nKilometer = 0.70 + nKilometer * 0.79;
                }
                if(nKilometer>=20&&nKilometer<100)
                {
                    nKilometer *= 0.09;
                }
                if(nKilometer>=100)
                {
                    nKilometer *= 0.06;
                }
            }


            if (choose == "night")
            {
                if (nKilometer < 20)
                {
                    nKilometer = 0.70 + nKilometer * 0.90;
                }
                if (nKilometer >= 20 && nKilometer < 100)
                {
                    nKilometer *= 0.09;
                }
                if (nKilometer >= 100)
                {
                    nKilometer *= 0.06;
                }
            }


            Console.WriteLine(nKilometer);
        }
    }
}