import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	}
} Main public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	} main {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		} N == 1 N 1 {
			System.out.println(1);
		} System.out.println(1) System.out.println System.out System System.out 1 if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		} N % 2 == 1 N % 2 N 2 1 {
			System.out.println((N/2)+1);
		} System.out.println((N/2)+1) System.out.println System.out System System.out (N/2)+1 (N/2) N 2 1 {
			System.out.println((N/2));
		} System.out.println((N/2)) System.out.println System.out System System.out (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();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	}
} public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		if(N == 1) {
			System.out.println(1);
		} else if(N % 2 == 1) {
			System.out.println((N/2)+1);
		} else {
			System.out.println((N/2));
		}
	}
}
