#include <atcoder/all>
using namespace std;
using namespace atcoder;

int main(){
	int T;
	cin >> T;
	while(T--){
		long long D, A, B;
		cin >> D >> A >> B;
		cout << (B * (B + 1) - A * (A - 1)) / 2 - D * (floor_sum(B + 1, --D, 1, -1) - floor_sum(A + !A, D, 1, -1)) << '\n';
	}
}