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

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        
        Scanner kilo= new Scanner(System.in);
        
        
        
        System.out.println("Kilometres to mile converter -:) ");
        System.out.println("write your km");
        
        Double user = kilo.nextDouble();
        
        Double miles = user*0.621371;
        
        System.out.println(miles+" miles");
        
  
  
  
  
  
  
  
  
  
  
  
    }
}