import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		//Scanner sc = new Scanner(System.in);
		double s=0;
		for(int i=1;i<=5;i++){
			s=(s+1000)/(1+0.0063*12);
		}
		System.out.println(String.format("%.2f",s));
		
	}
}


/**************************************************************
	Problem: 1262
	User: admin
	Language: Java
	Result: Runtime Error
****************************************************************/