Problem:
Debt Hell

Your friend who lives in undisclosed country is involved in debt. He is borrowing 100,000-yen from a loan shark. The loan shark adds 5% interest of the debt and rounds it to the nearest 1,000 above week by week.

Write a program which computes the amount of the debt in n weeks.

Input

An integer n (0 ≤ n ≤ 100) is given in a line.

Output

Print the amout of the debt in a line.

Sample Input

5

Output for the Sample Input

130000

Solution in C# (judge verdict: Accepted)

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

namespace Volume0007
{
    class Program
    {
        const long _principal = 100000;
        const double _interestRate = 1.05;

        static void Main(string[] args)
        {
            int weeks = int.Parse(Console.ReadLine());
            double repayment = Money.CalcRepayment(_principal, _interestRate, weeks);
            Console.WriteLine(repayment);
        }
    }
    class Money
    {
        internal static double CalcRepayment(double Princepal, double InterestRate, int Weeks)
        {
            double Repayment = Princepal;
            for (int n = 0; n < Weeks; ++n)
            {
                Repayment = Repayment * InterestRate;
                if (0 < Repayment % 1000 && Repayment % 1000 <= 499)
                {
                    Repayment = double.Parse((Repayment / 1000).ToString("F0")) * 1000 + 1000;
                }
                else if (500 <= Repayment % 1000)
                    Repayment = double.Parse((Repayment / 1000).ToString("F0")) * 1000;
            }

            return Repayment;
        }

    }
}