import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc n = (int) (Math.log10(n) / Math.log10(2)) n (int) (Math.log10(n) / Math.log10(2)) Math.log10(n) Math.log10 Math n Math.log10(2) Math.log10 Math 2 System.out.println((int) Math.pow(2,n)) System.out.println System.out System System.out (int) Math.pow(2,n) Math.pow Math 2 n sc.close() sc.close sc String[] args args public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    }
} public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        n = (int) (Math.log10(n) / Math.log10(2));
        System.out.println((int) Math.pow(2,n));
        sc.close();
    }
}