import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    }
} import java.util.*; util.* java public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    }
} Main public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    } main {
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int count = 0; count 0 int p = 1; p 1 while(p <= n){
        p *= 2;
      } p <= n p n {
        p *= 2;
      } p *= 2 p 2 System.out.println(p/2) System.out.println System.out System System.out p/2 p 2 String[] args args public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    }
} public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    }
} Main
import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int count = 0;
      int p = 1;
      while(p <= n){
        p *= 2;
      }
      System.out.println(p/2);
    }
}