public class Main {
public static void main(String[] args){
float a;
Scanner a1=new Scanner(System.in);
a=a1.nextFloat();
System.out.println(String.format("%.3f",a));
}
}
public class Main {
public static void main(String[] args){
float a;
Scanner a1=new Scanner(System.in);
a=a1.nextFloat();
System.out.println(String.format("%.3f",a));
}
}