import java.util.*;
public class Main{
	public static void main(String[] args){
  		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int result = 1;
		while(n!=1){
			n=n/2;
			result=result*2;
		}
		System.out.println(result);
		
	}
}

/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