using System;

public class Program

{

    public static void Main()

    {

        decimal a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, taxs, totalbt, totalat, finaltotal, discount, aa, bb, cc, dd, ee, ff, gg, hh, ii, jj, kk, ll, mm, nn, oo, pp;

​

            Console.Write("How many pens do you want to order? ");

            a = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many rolls of tape do you want to order? ");

            b = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many highlighters do you want to order? ");

            c = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many boxes of paper clips do you want to order? ");

            d = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many pairs of scissors do you want to order? ");

            e = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many trash cans do you want to order? ");

            f = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many wireless routers do you want to order? ");

            g = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many push pens do you want to order? ");

            h = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many desks do you want to order? ");

            i = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many bottles do you want to order? ");

            j = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many white board cleaner do you want to order? ");

            k = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many white board erasers do you want to order? ");

            l = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many tables do you want to order? ");

            m = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many box of paper do you want to order? ");

            n = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many computer systems do you want to order? ");

            o = Convert.ToInt32(Console.ReadLine());

​

            Console.Write("How many hole punchers do you want to order? ");

            p = Convert.ToInt32(Console.ReadLine());

​

            aa = a * 5;

            bb = b * 2;

            cc = c * (decimal).5;

            dd = d * (decimal).75;

            ee = e * (decimal)1.50;

            ff = f * 10;

            gg = g * 50;

            hh = h * (decimal).50;

            ii = i * 35;

            jj = j * (decimal)40;

            kk = k *(decimal)4.50;

            ll = l * 2;

            mm = m * 65;

            nn = n * 35;

            oo = o * 890;

            pp = p * 5;

            totalbt = aa + bb + cc + dd + ee + ff + gg + hh + ii + jj + kk + ll + mm + nn + oo + pp;

            if (totalbt >= 500)

            {

                discount = (decimal).05 * (totalbt);

            }

​

            else if (totalbt >= 5000)

            {

                discount = (decimal).20 * (totalbt);

            }

            else if (totalbt >= 20000)

            {

                discount = (decimal).50 * (totalbt);

            }

            else

                discount = 0;

            taxs = totalbt * (decimal)0.03;

            finaltotal = totalbt + taxs - discount;

                Console.WriteLine("The total number of pens.............................{0}",a);

            Console.WriteLine("The total number of tape.............................{0}", b);

            Console.WriteLine("The total number of highlighter......................{0}", c);

            Console.WriteLine("The total number of paper clips......................{0}", d);

            Console.WriteLine("The total number of scissors.........................{0}",e);

            Console.WriteLine("The total number of trash can........................{0}", f);

            Console.WriteLine("The total number of wireless router..................{0}", g);

            Console.WriteLine("The total number of push pins........................{0}", h);

            Console.WriteLine("The total number of Chair............................{0}", i);

            Console.WriteLine("The total number of Desks............................{0}", j);

            Console.WriteLine("The total number of White board clea.................{0}", k);

            Console.WriteLine("The total number of White Board Eraser...............{0}", l);

            Console.WriteLine("The total number of Table............................{0}", m);

            Console.WriteLine("The total number of Boxes of paper...................{0}", n);

            Console.WriteLine("The total number of computer system..................{0}", o);

            Console.WriteLine("The total number of whole puncher....................{0}", p);

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("");

​

            Console.WriteLine("Receipt");

            Console.WriteLine("Price Before Tax...............${0:f2}",totalbt);

            Console.WriteLine("Discount.......................${0:f2}",discount);

            Console.WriteLine("Tax............................${0:f2}",taxs);

            Console.WriteLine("Total Cost.....................${0:f2}",finaltotal);

            Console.ReadLine();

    }

}