#include <stdio.h>
#include <stdlib.h>
#include <math.h>

bool isPowerOf2(int number){
	if ( number > 0 )
		return (number & (number-1)) == 0;
	
	if (number == 0)
		return false;
	
	if (isPowerOf2(-number)){
		int count=0;
		while ( !(number & 1)) {
			++count;
			number >>= 1;
		}
		if (fmod(count,2))
			return true;
		else
			return false;
	}
	return false;
}

int main(void) {
	for(int i=-1027; i<1025; ++i){
		if (isPowerOf2(i) )
			printf("%d\n", i);
	}
	
	return EXIT_SUCCESS;
}