func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, a, b, t, p, i;   int main() {     cin >> n >> a >> b;     p = b * n;     while (n > 1) {       t += 2 * a + 1;       n--;     }     cout << t <<     << p;     return 0;   }   