import java.util.Scanner;
	public class Main{
      public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      }
    } 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();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      }
    } Main public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int a = n/2; a n/2 n 2 int b = n%2; b n%2 n 2 System.out.println(a+b) System.out.println System.out System System.out a+b a b String[]args args public class Main{
      public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      }
    } public class Main{
      public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      }
    } Main
import java.util.Scanner;
	public class Main{
      public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = n/2;
        int b = n%2;
        System.out.println(a+b);
      }
    }
