using System;

public class Program

{

    public static void Main()

    {

         //Possibilities:

​

            //Consumes up to 199 units, $1.20 per unit ("unit" <= 199)

            //Consumes 200 to 399 units, $1.50 per unit ("unit" <= 399)

            //Consumes 400 to 599 units, $1.80 per unit and 15% surcharge ("unit" <= 599)

            //Consumes 600 or more units, $2.00 per unit and 15% surcharge ("unit" >= 600)

​

            string ID, ln, fn, start, end;

​

            Console.Write("Input customer ID: ");

            ID = Console.ReadLine();

​

            Console.Write("Input the last name of the customer: ");

            ln = Console.ReadLine();

​

            Console.Write("Iput the first name of the customer: ");

            fn = Console.ReadLine();

​

            Console.Write("Input the starting date (example 01/17/2023): ");

            start = Console.ReadLine();

​

            Console.Write("Input the ending date (example 01/17/2023): ");

            end = Console.ReadLine();

​

​

            double units, gross, nettotal;

​

            Console.Write("Input the units consumed by the customer: ");

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

​

            gross = units * 1.20;

​

            nettotal = gross;

​

​

            double gross2, nettotal2;

​

            gross2 = units * 1.50;

​

            nettotal2 = gross2;

​

​

            double gross3, nettotal3, surcharge, amount_to_surchg3,after_surchg3;

​

            surcharge = 0.15;

​

            gross3 = units * 1.80;

​

            amount_to_surchg3 = surcharge * gross3;

​

            after_surchg3 = amount_to_surchg3 + gross3;

​

            nettotal3 = after_surchg3;

​

​

            double gross4, nettotal4, amount_to_surchg4, after_surchg4;

​

            gross4 = units * 2.00;

​

            amount_to_surchg4 = surcharge * gross4;

​

            after_surchg4 = amount_to_surchg4 + gross4;

​

            nettotal4 = after_surchg4;

​

​

​

            //NOTICE: Some outputs displayed below were seperated inorder to properly align the decimal points.

​

            if

                (units <= 8)

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $  1.20");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}",gross);

                Console.WriteLine("Surcharge Amount: --------------------- $  0.00");

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}",nettotal);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

​

            else if 

                (units <= 83)

​

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $   1.20");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross);

                Console.WriteLine("Surcharge Amount: --------------------- $   0.00");

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

​

            else if

                (units <= 199)

​

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $    1.20");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross);

                Console.WriteLine("Surcharge Amount: --------------------- $    0.00");

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

​

            else if

               (units <= 399)

​

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $    1.50");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross2);

                Console.WriteLine("Surcharge Amount: --------------------- $    0.00");

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal2);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

​

            else if

                (units <= 555)

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $    1.80");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross3);

                Console.WriteLine("Surcharge Amount: --------------------- $  {0:f2}",amount_to_surchg3);

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal3);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

            }

​

​

​

            else if

                (units <= 599)

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $     1.80");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross3);

                Console.WriteLine("Surcharge Amount: --------------------- $   {0:f2}", amount_to_surchg3);

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal3);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

​

​

            else if

                (units >= 600)

            {

​

                Console.WriteLine();

                Console.WriteLine("========================================================");

                Console.WriteLine("Electricity Bill");

                Console.WriteLine();

​

                Console.WriteLine("Customer ID Number: ------------------- {0}", ID);

                Console.WriteLine("Customer Last, First name: ------------ {0}, {1}", ln, fn);

                Console.WriteLine("Starting Date: ------------------------ {0}", start);

                Console.WriteLine("Ending Date: -------------------------- {0}", end);

                Console.WriteLine("Units Consumed: ----------------------- {0}", units);

                Console.WriteLine("Amount @Rs Charge per unit: ----------- $     2.00");

                Console.WriteLine("Gross Charges: ------------------------ $  {0:f2}", gross4);

                Console.WriteLine("Surcharge Amount: --------------------- $   {0:f2}", amount_to_surchg4);

                Console.WriteLine("Net amount paid by Consumer: ---------- $  {0:f2}", nettotal4);

​

                Console.WriteLine("========================================================");

                Console.WriteLine();

​

            }

​

            Console.ReadLine();

    }

}