#include <bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
#endif
using ll=long long;
using ull=unsigned long long;
using P=pair<ll,ll>;
template<typename T>using minque=priority_queue<T,vector<T>,greater<T>>;
template<typename T>bool chmax(T &a,const T &b){return (a<b?(a=b,true):false);}
template<typename T>bool chmin(T &a,const T &b){return (a>b?(a=b,true):false);}
template<typename T1,typename T2>istream &operator>>(istream &is,pair<T1,T2>&p){is>>p.first>>p.second;return is;}
template<typename T>istream &operator>>(istream &is,vector<T> &a){for(auto &i:a)is>>i;return is;}
template<typename T1,typename T2>void operator++(pair<T1,T2>&a,int n){a.first++,a.second++;}
template<typename T1,typename T2>void operator--(pair<T1,T2>&a,int n){a.first--,a.second--;}
template<typename T>void operator++(vector<T>&a,int n){for(auto &i:a)i++;}
template<typename T>void operator--(vector<T>&a,int n){for(auto &i:a)i--;}
#define reps(i,a,n) for(int i=(a);i<int(n);i++)
#define rep(i,n) reps(i,0,n)
#define all(x) x.begin(),x.end()
#define pcnt(x) __builtin_popcountll(x)
#define fin(x) return cout<<x<<'\n',static_cast<void>(0)
ll myceil(ll a,ll b){return (a+b-1)/b;}
template<typename T,size_t n,size_t id=0>
auto vec(const int (&d)[n],const T &init=T()){
  if constexpr (id<n)return vector(d[id],vec<T,n,id+1>(d,init));
  else return init;
}
#ifdef LOCAL
#include<debug.h>
#else
#define debug(...) static_cast<void>(0)
#define debugg(...) static_cast<void>(0)
template<typename T1,typename T2>ostream &operator<<(ostream &os,const pair<T1,T2>&p){os<<p.first<<' '<<p.second;return os;}
#endif
void SOLVE();
int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  cout<<fixed<<setprecision(16);
  #ifdef LOCAL
  clock_t start=clock();
  #endif
  int testcase=1;
  cin>>testcase;
  for(int i=0;i<testcase;i++){
    SOLVE();
  }
  #ifdef LOCAL
  cerr<<"time:";
  cerr<<(clock()-start)/1000;
  cerr<<"ms\n";
  #endif
}
#include<type_traits>
template<typename T,std::enable_if_t<std::is_integral_v<T>,std::nullptr_t> =nullptr,typename Func>
T bin_search(T ok,T ng,const Func&f){
  while(std::abs(ok-ng)>1){
    T mid=(ok&ng)+((ok^ng)>>1);
    (f(mid)?ok:ng)=mid;
  }
  return ok;
}
template<typename T,std::enable_if_t<std::is_floating_point_v<T>,int> loop=100,typename Func>
T bin_search(T ok,T ng,const Func&f){
  for(int i=0;i<loop;i++){
    T mid=(ok+ng)/2;
    (f(mid)?ok:ng)=mid;
  }
  return ok;
}
void SOLVE(){
  ll d,x,y;
  cin>>d>>x>>y;
  auto is_ok=[&](ll a,ll b)->bool {
    return 0<=a&&a<=d&&0<=b&&b<=d;
  };
  auto cross=[&](ll ax,ll ay,ll bx,ll by){return ax*by-ay*bx;};
  ll ans=0;
  {
    ll dx=bin_search<ll>(0,d+1,[&](ll v)->bool {
      return is_ok(x+v*y,y-x*v);
    });
    debug(dx);
    chmax(ans,abs(cross(x,y,x+dx*y,y-dx*x)));
  }
  {
    ll dx=bin_search<ll>(0,d+1,[&](ll v)->bool {
      return is_ok(x-v*y,y+x*v);
    });
    debug(dx);
    chmax(ans,abs(cross(x,y,x-dx*y,y+dx*x)));
  }
  cout<<ans<<'\n';
}