#include <bits/stdc++.h>
//#include <chrono>
//#pragma GCC optimize("O3")
using namespace std;
#define reps(i,s,n) for(int i = s; i < n; i++)
#define rep(i,n) reps(i,0,n)
#define Rreps(i,n,e) for(int i = n - 1; i >= e; --i)
#define Rrep(i,n) Rreps(i,n,0)
#define ALL(a) a.begin(), a.end()
#define fi first
#define se second

using ll = long long;
using vec = vector<ll>;
using mat = vector<vec>;

ll N,M,H,W,Q,K,A,B;
string S;
typedef pair<ll, ll> P;
const ll INF = (1LL<<48);

ll f(ll a){
    ll res = (N * (N - 1) / 2) * (a / (N - 1));
    a %= N - 1;
    res += a * (a + 1) / 2;
    return res;
}

int main() {
    cin>>Q;
    rep(_, Q){
        cin>>N>>A>>B;
        cout<<f(B) - f(max(0LL, A - 1))<<endl;
    }
}