func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int gcd(long long int x, long long int y) {     return y == 0 ? x : gcd(y, x % y);   }   int main() {     long long int a;     cin >> a;     if (a > 2) {       if (a * a % 2)         cout << (a * a - 1) / 2 <<     << (a * a + 1) / 2;       else         cout << (a * a / 2 - 2) / 2 <<     << (a * a / 2 + 2) / 2;     } else {       cout << -1 << endl;     }   }   