#include using namespace std; #define int long long #define rep(i, n) for (int i = 0; i < (int) (n); i++) #define reps(i, n) for (int i = 1; i <= (int) (n); i++) #define all(a) (a).begin(), (a).end() #define uniq(a) (a).erase(unique(all(a)), (a).end()) #define bit(n) (1LL << (n)) #define dump(a) cerr << #a " = " << (a) << endl using vint = vector; using pint = pair; using vpint = vector; template using priority_queue_rev = priority_queue, greater>; constexpr double PI = 3.1415926535897932384626433832795028; constexpr int DY[9] = {0, 1, 0, -1, 1, 1, -1, -1, 0}; constexpr int DX[9] = {1, 0, -1, 0, 1, -1, -1, 1, 0}; int sign(int a) { return (a > 0) - (a < 0); } int cdiv(int a, int b) { return (a - 1 + b) / b; } template void fin(T a) { cout << a << endl; exit(0); } template T sq(T a) { return a * a; } template bool chmax(T &a, const U &b) { if (a < b) { a = b; return true; } return false; } template bool chmin(T &a, const U &b) { if (b < a) { a = b; return true; } return false; } template ostream &operator<<(ostream &os, const pair &a) { os << "(" << a.first << ", " << a.second << ")"; return os; } template ostream &operator<<(ostream &os, const vector &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const deque &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const set &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const multiset &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const map &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } struct setup { static constexpr int PREC = 20; setup() { cout << fixed << setprecision(PREC); cerr << fixed << setprecision(PREC); }; } setup; signed main() { int T; cin >> T; while (T--) { int d, A, B; cin >> d >> A >> B, d--, A--; auto f = [&](int m) -> int { int ret = m / d * d * (d + 1) / 2; m %= d; ret += m * (m + 1) / 2; return ret; }; cout << f(B) - f(A) << endl; } }