func_code_string: #include <bits/stdc++.h>   using namespace std;   long long M = 1e9 + 7;   void solve() {     long long n, r;     cin >> n >> r;     long long ans = 0;     if (r >= n) ans++;     r = min(r, n - 1);     if (r % 2)       ans += r * ((r + 1) / 2);     else       ans += (r / 2) * (r + 1);     cout << ans <<   n ;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int t = 1;     cin >> t;     while (t--) {       solve();     }     return 0;   }   