import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int count = 0;
		while(N != 1){
			N /= 2;
			count++;
		}
		System.out.println(pow(count));
	}
	
	static int pow(int n){
		int pow = 1;
		for(int idx = 0; idx < n; idx++)
			pow *= 2;
		return pow;
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz