import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 64 n 64 System.out.println(64) System.out.println System.out System System.out 64 if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 32 n 32 System.out.println(32) System.out.println System.out System System.out 32 if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 16 n 16 System.out.println(16) System.out.println System.out System System.out 16 if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 8 n 8 System.out.println(8) System.out.println System.out System System.out 8 if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 4 n 4 System.out.println(4) System.out.println System.out System System.out 4 if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1); n >= 2 n 2 System.out.println(2) System.out.println System.out System System.out 2 System.out.println(1) System.out.println System.out System System.out 1 String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n >= 64)
            System.out.println(64);
        else if (n >= 32)
            System.out.println(32);
        else if (n >= 16)
            System.out.println(16);
        else if (n >= 8)
            System.out.println(8);
        else if (n >= 4)
            System.out.println(4);
        else if (n >= 2)
            System.out.println(2);
        else
            System.out.println(1);
    }
}
