
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	}
} Main public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	} main {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) double N = scan.nextInt(); N scan.nextInt() scan.nextInt scan System.out.println((int)Math.ceil(N/2)) System.out.println System.out System System.out (int)Math.ceil(N/2) Math.ceil Math N/2 N 2 scan.close() scan.close scan String[] args args public class Main {
	public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	}
} public class Main {
	public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	}
} Main

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {


	Scanner scan = new Scanner(System.in);
	double N = scan.nextInt();

	System.out.println((int)Math.ceil(N/2));
	scan.close();
	}
}
