import java.util.Arrays;
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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        }
    }
} import java.util.Arrays; Arrays java.util 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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        }
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        int i = 1;
        while (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        }
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        int i = 1;
        while (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        } true {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        } if (i > n) {
                System.out.println(i / 2);
                return;
            } i > n i n {
                System.out.println(i / 2);
                return;
            } System.out.println(i / 2) System.out.println System.out System System.out i / 2 i 2 return; 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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        }
    }
} Main
import java.util.Arrays;
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 (true) {
            if (i > n) {
                System.out.println(i / 2);
                return;
            }
            i *= 2;
        }
    }
}
