import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    }
} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1) System.out.println System.out System System.out n % 2 == 0 ? n / 2 : n / 2 + 1 n % 2 == 0 n % 2 n 2 0 n / 2 n 2 n / 2 + 1 n / 2 n 2 1 String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    }
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    }
} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        System.out.println(n % 2 == 0 ? n / 2 : n / 2 + 1);
    }
}