using System;

public class Program

{

    public static void Main()

    {

        int year = 0;

        double amount = 10000;

        int multiple = 0;

        double temp =0;

        Console.WriteLine("請輸入獲利倍數:");

        multiple = int.Parse(Console.ReadLine());

        //temp = amount / 10000;

        while(temp <= multiple){

            amount = amount * 1.5;

            year = year+1;

            Console.WriteLine("第 " + year + " 年 "+ amount);

            temp = amount / 10000;

        }

        Console.WriteLine("需要投資 "+year+" 年");

    }

}