import java.io.*;
import java.util.*;

class PoundsTokg{
	public static void main (String[] args)throws Exception{
		//1 Pounds = 0.45 Kg;
		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
		System.out.println("Enter the Pounds:");
		int pound = Integer.parseInt(bf.readLine());
		double kilo = pound * 0.45;
		System.out.println("Kilo: " + kilo);
	}
}