using System;

public class Program

{

public static void Main()

{

    decimal Capital = 20000;

    decimal SavingPerMonth = 0;

    decimal CurrentAgeMonths = 50 * 12;

    decimal PensionAgeMonths = 68 * 12;

    decimal DesiredIncome = 3000;

    if (((PensionAgeMonths - CurrentAgeMonths) * SavingPerMonth) + Capital > DesiredIncome) 

    {

        decimal TotalPossibleSavings = Capital + ((PensionAgeMonths - CurrentAgeMonths) * SavingPerMonth);      // Savings from current age until pension age

        decimal RetireEarlyMonths = Math.Floor(TotalPossibleSavings / DesiredIncome);                           // Best case scenario of months earlier

        decimal TimeToRetirement = (PensionAgeMonths - RetireEarlyMonths) - CurrentAgeMonths;                   // Months from current age until retire early

        decimal SavingAtRetirement = (TimeToRetirement * SavingPerMonth) + Capital;                             // Savings from current to retire early

        Console.WriteLine("Total Possible Savings = " + TotalPossibleSavings);

        Console.WriteLine("Possible early months = " + RetireEarlyMonths);

        Console.WriteLine("Months to early retirement = " + TimeToRetirement);

        Console.WriteLine("Savings to possible retirement = " + SavingAtRetirement);

        Console.WriteLine();

        Console.WriteLine(RetireEarlyMonths + " months you get " + Math.Floor((SavingAtRetirement / RetireEarlyMonths)));

        while ((SavingAtRetirement / RetireEarlyMonths) < 3000 && RetireEarlyMonths > 0)

        {

            RetireEarlyMonths = RetireEarlyMonths - 1;

            TimeToRetirement = (PensionAgeMonths - RetireEarlyMonths) - CurrentAgeMonths;

            SavingAtRetirement = (TimeToRetirement * SavingPerMonth) + Capital;

            if (RetireEarlyMonths < 1)

            {

                break;

            }

        }

        Console.WriteLine(RetireEarlyMonths + " months you get " + Math.Floor((SavingAtRetirement / RetireEarlyMonths)));

    }

}

}