func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     long long int m, b, i, x, curr, ma = 0, tot, j;     cin >> m >> b;     for (i = 0; i <= b; i++) {       x = m * (b - i);       tot = 0;       for (j = i; j >= 0; j--) {         curr = x * (x + 1);         curr /= 2;         curr += (x + 1) * j;         tot += curr;       }       ma = max(tot, ma);     }     cout << ma;     return 0;   }   