using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter amount of pictures");

        var a = int.Parse(Console.ReadLine());

        Console.WriteLine("Enter type of pictures");

        var t = Console.ReadLine();

        Console.WriteLine("Enter way of purchase");

        var p = Console.ReadLine();

        if (t == "9x13" && a < 50)

        {

            var price = a * 0.16;

            Console.WriteLine(price + " BGN");

        }

​

        if (t == "9x13" && a >= 50)

        {

            var price1 = a * 0.16 - a * 0.05 * 0.16;

            Console.WriteLine(price1 + " BGN");

        }

​

        if (t == "10x15" && a < 80)

        {

            var price = a * 0.16;

            Console.WriteLine(price + " BGN");

        }

​

        if (t == "10x15" && a >= 80)

        {

            var price1 = a * 0.16 - a * 0.03 * 0.16;

            Console.WriteLine(price1 + " BGN");

        }

​

        if (t == "13x18" && a >= 50 && a < 100)

        {

            var price = a * 0.38 - a * 0.03 * 0.38;

            Console.WriteLine(price + " BGN");

        }

​

        if (t == "13x18" && a > 100)

        {

            var price1 = a * 0.38 - a * 0.05 * 0.38;

            Console.WriteLine(price1 + " BGN");

        }

        else

        {

            var price2 = a * 0.38;

            Console.WriteLine(price2 + " BGN");

        }

​

        if (t == "20x30" && a >= 10 && a < 50)

        {

            var pric = a * 2.90 - a * 0.07 * 2.90;

            Console.WriteLine(pric + " BGN");

        }

​

        if (t == "20x30" && a > 50)

        {

            var price1 = a * 2.90 - a * 0.09 * 2.90;

            Console.WriteLine(price1 + " BGN");

        }

        else

        {

            var price2 = a * 2.90;

            Console.WriteLine(price2 + " BGN");

        }

        if (p == "online")

            {

                var price3 = a * 0.98;

                Console.WriteLine(price3 + " BGN");

            }

​

            if (p == "office")

            {

                var price = a * 1;

                Console.WriteLine(price);

            }

​

    }

}