#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
using ll = long long;
constexpr int INF = 0x3f3f3f3f;
constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr double EPS = 1e-8;
constexpr int MOD = 998244353;
// constexpr int MOD = 1000000007;
constexpr int DY4[]{1, 0, -1, 0}, DX4[]{0, -1, 0, 1};
constexpr int DY8[]{1, 1, 0, -1, -1, -1, 0, 1};
constexpr int DX8[]{0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U>
inline bool chmax(T& a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U>
inline bool chmin(T& a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << fixed << setprecision(20);
  }
} iosetup;

ll area(const ll x1, const ll y1, const ll x2, const ll y2) {
  return abs(x1 * y2 - x2 * y1);
}

int main() {
  int t; cin >> t;
  while (t--) {
    ll d, x, y; cin >> d >> x >> y;
    if (x == 0) {
      cout << d * y << '\n';
    } else if (y == 0) {
      cout << d * x << '\n';
    } else {
      const ll u = x / gcd(x, y), v = y / gcd(x, y);
      const ll l = min(x / v, (d - y) / u);
      const ll r = min((d - x) / v, y / u);
      cout << max(area(x, y, x - v * l, y + u * l), area(x, y, x + v * r, y - u * r)) << '\n';
    }
  }
  return 0;
}