func_code_string: #include <bits/stdc++.h>   const int INF = 0x3f3f3f3f;   const double PI = acos(-1.0);   const double EPS = 1e-8;   using namespace std;   int main() {     int n;     while (cin >> n) {       if (n <= 2)         puts( -1 );       else {         if (n % 2)           cout << 2 * ((long long)(n / 2) * (n / 2) + n / 2) <<                    << 2 * ((long long)(n / 2) * (n / 2) + n / 2) + 1 << endl;         else           cout << (long long)(n / 2) * (n / 2) - 1 <<                    << (long long)(n / 2) * (n / 2) + 1 << endl;       }     }     return 0;   }   