import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    }
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    }
} Main public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    } main {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) int n = Integer.parseInt(br.readLine()); n Integer.parseInt(br.readLine()) Integer.parseInt Integer br.readLine() br.readLine br int a = 128; a 128 for (; a > n; a /= 2); ; a > n a n a /= 2 a /= 2 a 2 ; System.out.println(a) System.out.println System.out System System.out a String[] args args public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    }
} public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    }
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        String[] str = br.readLine().split(" ");
        int n = Integer.parseInt(br.readLine());
        int a = 128;
        for (; a > n; a /= 2);
        System.out.println(a);

    }
}
