#include <bits/stdc++.h>
//#include <atcoder/modint>

using namespace std;
//using namespace atcoder;
using ll = long long;
//using mint = modint998244353;

//calculate ceil(a/b)
template<typename T>
T ceil(T a, T b){
    assert(b != 0);
    if (a == 0) return 0;

    if (a > 0 && b > 0) return (a+b-1) / b;
    else if (a < 0 && b < 0) return (a+b+1) / b;
    else return a / b;
}

//calculate floor(a/b)
template<typename T>
T floor(T a, T b){
    assert(b != 0);
    if (a == 0) return 0;

    if (a > 0 && b < 0) return (a-b-1) / b;
    else if (a < 0 && b > 0) return (a-b+1) / b;
    else return a / b;
}

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    int T;
    cin >> T;
    while(T--){
        ll D, x, y, l1=-2e9, r1=2e9, l2=-2e9, r2=2e9, l, r, ans, g, x2, y2, x3, y3;
        cin >> D >> x >> y;
        g = gcd(x, y);
        x2 = x/g;
        y2 = y/g;
        //ありうるのは(x-ny2, y+nx2) (nは整数)
        //0<=x-ny2<=D, 0<=y+nx2<=D
        if (y2 != 0) l1 = ceil(x-D, y2);
        if (y2 != 0) r1 = floor(x, y2);
        if (x2 != 0) l2 = ceil(-y, x2);
        if (x2 != 0) r2 = floor(D-y, x2);
        l = max(l1, l2);
        r = min(r1, r2);
        if (l>r){
            cout << 0 << endl;
        }
        else{
            g = max(abs(l), abs(r));
            x3 = x-g*y2;
            y3 = y+g*x2;
            ans = abs(x3*y-y3*x);
            cout << ans << endl;
        }
    }

    return 0;
}