using System;

public class Program

{

    public static void Main()

    {

        string price = "499.50" , vat  = "0.07";

        char adult = '5';

        float child = 3.25f;

        int C_adult , C_child;

        float C_price, C_vat;

        C_adult = int.Parse(adult.ToString());

        C_child = (int)child;

        C_price = float.Parse(price);

        C_vat = float.Parse(vat);

    //  ((C_adult*C_price)+(C_child*C_price/2)*C_vat);

        Console.WriteLine("ผู้ใหญ่ = {0:f}",C_adult*C_price);

        Console.WriteLine("เด็ก = {0:f}",C_child*C_price/2);

        Console.WriteLine("ภาษี = {0:f}",((C_adult*C_price)+(C_child*C_price/2))*C_vat);

        Console.WriteLine("ราคา = {0:f}",(C_adult*C_price)+(C_child*C_price/2)+C_vat);

    }

}