import java.util.*;
class Main{
public static void main (String[] args){
 Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = a / 2;
    int c = a % 2;
   if(c == 1){
     b = b + 1;
   }
   System.out.println(b);  
  
  }
} import java.util.*; util.* java class Main{
public static void main (String[] args){
 Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = a / 2;
    int c = a % 2;
   if(c == 1){
     b = b + 1;
   }
   System.out.println(b);  
  
  }
} Main public static void main (String[] args){
 Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = a / 2;
    int c = a % 2;
   if(c == 1){
     b = b + 1;
   }
   System.out.println(b);  
  
  } main {
 Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = a / 2;
    int c = a % 2;
   if(c == 1){
     b = b + 1;
   }
   System.out.println(b);  
  
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = a / 2; b a / 2 a 2 int c = a % 2; c a % 2 a 2 if(c == 1){
     b = b + 1;
   } c == 1 c 1 {
     b = b + 1;
   } b = b + 1 b b + 1 b 1 System.out.println(b) System.out.println System.out System System.out b String[] args args
import java.util.*;
class Main{
public static void main (String[] args){
 Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = a / 2;
    int c = a % 2;
   if(c == 1){
     b = b + 1;
   }
   System.out.println(b);  
  
  }
}