import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

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

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    } main {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) final int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc System.out.println((N + 2 - 1) / 2) System.out.println System.out System System.out (N + 2 - 1) / 2 (N + 2 - 1) N + 2 N 2 1 2 String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    }
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    }
} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int N = sc.nextInt();

        System.out.println((N + 2 - 1) / 2);
    }
}
