import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double d= scanner.nextDouble();
int i = (int)(d+0.5);
System.out.println(i);
}
}
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double d= scanner.nextDouble();
int i = (int)(d+0.5);
System.out.println(i);
}
}