Zdraveite,

Niakoi moge li da mi kage kude gresha?

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

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

            int n = int.Parse(Console.ReadLine());
            double tableLenght = double.Parse(Console.ReadLine());
            double tableWidth = double.Parse(Console.ReadLine());

            double recArea = Math.Round((tableLenght + 2*0.30) * (tableWidth + 2*0.30),2);
            double squareArea = Math.Round((tableLenght / 2) * (tableLenght / 2), 2);
            double priceRectangularUSD =Math.Round(( n * recArea * 7), 2);
            double priceRectangularBGN = Math.Round((n * recArea * 7)*1.85, 2);
            double priceSquareUSD = Math.Round((n * squareArea * 9),2);
            double priceSquareBGN = Math.Round((n * squareArea * 9)*1.85,2);
            double totalPriceUSD = (n*recArea*7)+(n*squareArea*9);
            double totalPriceBGN = priceSquareBGN + priceRectangularBGN;

            {
                Console.WriteLine(Math.Round(totalPriceUSD, 2)+  " USD");
                Console.WriteLine(Math.Round(totalPriceBGN, 2) +' '+  " BGN");
            }
        }
    }
}