#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
//g++ hoge.cpp (-std=c++17) -I . で実行
#pragma GCC target("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
typedef long long ll;
typedef pair<ll,ll> prl;
typedef vector<ll> vcl;
typedef map<ll,ll> mapl;
typedef unordered_map<ll,ll> umap;
#define pb push_back
#define all(v) v.begin(), v.end()
#define rep(i,a,b) for(ll i=a;i<=b;i++)
#define repi(i,a,b) for(int i=a;i<=b;i++)
#define repr(i,a,b) for(ll i=a;i>=b;i--)
#define reps(i,v) for(ll i=0;i<v.size();i++)
template<typename T> void chmin(T &a, const T &b) { a = min(a, b); }
template<typename T> void chmax(T &a, const T &b) { a = max(a, b); }
const ll mod = 1e9+7;

//Prime_Factorization
vector<prl> prime_fact(ll n){
    vector<prl> p;
    ll nc = n;
    for(ll i = 2; i * i <= n; i++){
        if(nc % i !=0) continue;
        ll c = 0;
        while(nc % i == 0) c++, nc /= i;
        p.push_back({i, c});
    }
    if(nc > 1) p.push_back({nc, 1});
    return p;
}

int main() {
    // your code goes here
    ll t;
    cin >> t;
    rep(ts,1,t){
        ll d,a,b,p,q,r,s,ans;
        cin >> d >> a >> b;
        d--;
        p=a/d; q=a%d;
        r=b/d; s=b%d;
        if(p==r){
            ans = (q+s)*(s-q+1)/2;
            if(q==0) ans+=d;
        } else {
            ans=(0+s)*(s-0+1)/2+(q+(d-1))*((d-1)-q+1)/2+(r-p-1)*(d-1)*(d-1+1)/2;
            ans+=d*(r-p);
            if(s==0) ans+=d;
        }
        cout << ans << endl;
    }
    return 0;
}