zoj 2417 Lowest Bit

#include "iostream"
using namespace std;

int main()
{
	int num;
	while (cin >> num && num != 0)
	{
		int count = 0, ans = 1;
		while (num % 2 != 1)
		{
			count++;
			num /= 2;
		}
		for (int i = 0; i < count; i++)
			ans *= 2;
		cout << ans << endl;
	}
}