import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    }

} 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 i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    }

} Main public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    } main {

        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc int i = 1; i 1 while(i <= N) {
            i *= 2;
        } i <= N i N {
            i *= 2;
        } i *= 2 i 2 System.out.println(i/2) System.out.println System.out System System.out i/2 i 2 String[] args args public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    }

} public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    }

} 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 i = 1;

        while(i <= N) {
            i *= 2;
        }
        System.out.println(i/2);
    }

}