#include <iostream>
#define rep(i, n) for(i = 0; i < n; i++)
#define int long long
using namespace std;

int gcd(int a, int b) {
	if (b == 0) return a;
	return gcd(b, a % b);
}

signed main() {
	int T;
	cin >> T;
	while (T--) {
		int d, x, y;
		cin >> d >> x >> y;
		int g = gcd(x, y);
		int xg = x / g;
		int yg = y / g;
		int r = min((d - y) / xg, x / yg);

		int xb = x - yg * r;
		int yb = y + xg * r;
		int area = abs(x * yb - xb * y);
		cout << area << endl;
	}
	return 0;
}