$n=<>;
$tmin=0;
$tmax=1e9+1;

for(;;){
	$s=0;
	$t=$tmid=$tmin+$tmax>>1;
	while($t){
		$s+=$t;
		$t>>=1;
	}
	if($s==$n){
		print("YES");
		exit;
	}
	if($s>$n){
		$tmax=$tmid;
	}else{
		$tmin=$tmid+1;
	}
	if($tmin==$tmax){
		print("NO");
		exit;
	}
}