
import java.util.Scanner;

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

import java.util.Scanner;

public class Main{
public static void main(String[]args){
Scanner sc = new Scanner(System.in);
int A = sc.nextInt();
System.out.print(A / 2 + A % 2);
}
}

