import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  } main {
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n=sc.nextInt(); n sc.nextInt() sc.nextInt sc System.out.print(((n/2)+(n%2))) System.out.print System.out System System.out ((n/2)+(n%2)) (n/2) n 2 (n%2) n 2 String[] args args public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  }
} Main
import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
  	int n=sc.nextInt();
    System.out.print(((n/2)+(n%2)));
  }
}