03. Energy Booster

using System;

namespace _03._Energy_Booster
{
    class Program
    {
        static void Main(string[] args)
        {
            string fruit = Console.ReadLine();
            string size = Console.ReadLine();
            int count = int.Parse(Console.ReadLine());

            double price = 0;

            switch (fruit)
            {
                case "Watermelon":
                    switch (size)
                    {
                        case "small":
                            price = 56 * 2;
                            break;
                        case "big":
                            price = 28.70 * 5;
                            break;
                    }
                    break;
                case "Mango":
                    switch (size)
                    {
                        case "small":
                            price = 36.66 * 2;
                            break;
                        case "big":
                            price = 19.60 * 5;
                            break;
                    }
                    break;
                case "Pineapple":
                    switch (size)
                    {
                        case "small":
                            price = 42.10 * 2;
                            break;
                        case "big":
                            price = 24.80 * 5;
                            break;
                    }

                    break;
                case "Raspberry":
                    switch (size)
                    {
                        case "small":
                            price = 20 * 2;
                            break;
                        case "big":
                            price = 15.20 * 5;
                            break;
                    }
                    break;
            }

            price = price * count;

            if (price >= 400 && price <= 1000)
            {
                price -= price * 0.15;
            }
            else if (price > 1000)
            {
                price -= price * 0.5;
            }

            Console.WriteLine($"{price:F2} lv.");
        }
    }
}