fruitShop

using System;
using System.IO;
using System.Threading;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {

            string fruit = Console.ReadLine();
            string day = Console.ReadLine();
            double amount = double.Parse(Console.ReadLine());
            double banana = 2.50;
            double apple = 1.20;
            double orange = 0.85;
            double grapefruit = 1.45;
            double kiwi = 2.70;
            double pineapple = 5.50;
            double grapes = 3.85;
            double weekendBanana = 2.70;
            double weekendApple = 1.25;
            double weekendOrange = 0.90;
            double weekendGrapefruit = 1.60;
            double weekendKiwi = 3.00;
            double weekendPineapple = 5.60;
            double weekendGrapes = 4.20;


            if (day == "Monday" || day == "Tuesday" || day == "Wednesday" || day == "Thursday" || day == "Friday")
            {
                if (fruit == "banana")
                {
                    Console.WriteLine($"{banana * amount:f2}");
                }
                else if (fruit == "apple")
                {
                    Console.WriteLine($"{apple * amount:f2}");
                }
                else if (fruit == "orange")
                {
                    Console.WriteLine($"{orange * amount:f2}");
                }
                else if (fruit == "grapefruit")
                {
                    Console.WriteLine($"{grapefruit * amount:f2}");
                }
                else if (fruit == "kiwi")
                {
                    Console.WriteLine($"{kiwi * amount:f2}");
                }
                else if (fruit == "pineapple")
                {
                    Console.WriteLine($"{pineapple * amount:f2}");
                }
                else if (fruit == "grapes")
                {
                    Console.WriteLine($"{grapes * amount:f2}");
                }
                else
                {
                    Console.WriteLine("error");
                }
            }
            else if (day == "Saturday" || day == "Sunday")
            {
                if (fruit == "banana")
                {
                    Console.WriteLine($"{weekendBanana * amount:f2}");
                }
                else if (fruit == "apple")
                {
                    Console.WriteLine($"{weekendApple * amount:f2}");
                }
                else if (fruit == "orange")
                {
                    Console.WriteLine($"{weekendOrange * amount:f2}");
                }
                else if (fruit == "grapefruit")
                {
                    Console.WriteLine($"{weekendGrapefruit * amount:f2}");
                }
                else if (fruit == "kiwi")
                {
                    Console.WriteLine($"{weekendKiwi * amount:f2}");
                }
                else if (fruit == "pineapple")
                {
                    Console.WriteLine($"{weekendPineapple * amount:f2}");
                }
                else if (fruit == "grapes")
                {
                    Console.WriteLine($"{weekendGrapes * amount:f2}");
                }
                else
                {
                    Console.WriteLine("error");
                }
            }
            else
            {
                Console.WriteLine("error");
            }
        }
    }
}