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

namespace populationInEgypt
{
    class Program
    {
        static void Main(string[] args)
        {
            double[] pop = new double[4];

            for (int i = 0; i < pop.Length; i++)
            {
                Console.Write("enter the population of year 200"+(i+1)+" : ");
                pop[i] = double.Parse(Console.ReadLine());
                Console.WriteLine();
            }
            double rate = 0.0;

            for (int i = 0; i < pop.Length; i++)
            {
                if (i == 0)
                {
                    Console.WriteLine("200{0}  | {1}    | {2} %", i + 1, pop[i], rate);

                }
                else if (i < pop.Length)
                {
                    rate = (pop[i] - pop[i-1]) / pop[i-1];
                    Console.WriteLine("200{0}  | {1}  | {2} %", i + 1, pop[i], rate);

                }

                else
                {
                    rate = (pop[i + 1] - pop[i]) / pop[i];
                    Console.WriteLine("200{0}  | {1}    | {2} %", i + 1, pop[i], rate);


                }


                }



        }
    }
}