using System;

public class Program

{

    public static void Main()

    {

        /* XYZ Telegram Company charges P18.50 for a telegram that does not exceed 12 words and P1.50

for every succeeding word, plus P5 service charge if type of delivery is special. Create a program

that accepts the number of words in a telegram and the type of delivery ‘S’ for special if the

customer desires for a special delivery. Compute and display the customer’s charge. */

         double charge = 0;

         char deltype;

         int numOfWords;

         Console.WriteLine("Input number of words and delivery type:");

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

         deltype = Convert.ToChar(Console.ReadLine());

        // this Boolean expression test if number of words is from 0 - 12

         if (numOfWords > 0 && numOfWords <= 12) {

         if (deltype == 'S' || deltype == 's')

         {

         charge = 18.50 + 5;

         }

         else {

         charge = 18.50;

​

         }

         }

        //this Boolean expression test if number of words is from 13 and more

         else if (numOfWords > 12)

         {

         int exceedword = numOfWords - 12;

         if (deltype == 'S' || deltype == 's')

         {

​

        charge = 18.50 + (exceedword * 1.50) + 5;

         }

         else

         {

         charge = 18.50 + (exceedword * 1.50);

         }

         }

        //this is the option if input from the user is wrong like a negative value

         else {

         Console.WriteLine("Input Error!");

         }

        // '+' operator concatenate the string and the value of charge w/c automatically

        //converted to string

         Console.WriteLine("The charge amount is:" + charge);

    }

}