using System;

public class Program

{

    public static void Main()

    {

            int year = 0;                   //year is created as in int.

            int year2 = 0;                  //year2 is created as in int.

            double subtractedAmount = 0;    //subtractAmount is created as double.

​

            double[] churchAttendance = new double[41];     //The double array churchAttendance is created with a value of 40.

​

            Console.Write("Please enter a year from 1985 to 2025: ");

            year = int.Parse(Console.ReadLine());           //year is set to the parsed input of the user.

            year2 = year - 1985;                            //year2 is set equal to year subtract 1985.

​

            if (year > 2025 || year < 1985)                 //If year is greater than 2025 or less than 1985, this if statement will run.

            {

                Console.WriteLine("Please pick a year between 1985 and 2025 (1985 and 2025 are also options).");

            }

​

            else        //else, if the above if statement does not run, then this else statement will run instead.

            {

                for (int i = 0; i < churchAttendance.Length; i++)       //For this loop to run, i is set to 0 and it must be less than the lenght of churchAttendance.

                {

                    subtractedAmount = year2 * 0.45;                    //subtractedAmount is equal to year2 multiplied by 0.45.

                    churchAttendance[i] = 30 - subtractedAmount;        //churchAttendance (at a certain stage of the loop) is equal to 30 subtract subtractedAmount.

                }

​

                Console.WriteLine("In the year " + year + ", " + churchAttendance[year2] + "% of the population attended church.");

            }

    }

}