import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    }

} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    }

} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    } main {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) float n = sc.nextFloat(); n sc.nextFloat() sc.nextFloat sc 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 String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    }

} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    }

} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float n = sc.nextFloat();
        System.out.println((int) Math.ceil(n / 2));
    }

}
