func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     unsigned long long int ops = 0;     long long int x, y, m;     cin >> x >> y >> m;     if (x >= m || y >= m) {       cout << 0 << endl;       return 0;     }     if (x <= 0 && y <= 0) {       cout << -1 << endl;       return 0;     }     long long int mi = min(x, y), ma = max(x, y);     long long int dif = ma - mi;     ops = dif / ma;     if (dif % ma != 0) ops++;     mi += ops * ma;     swap(mi, ma);     while (mi < m && ma < m) {       mi += ma;       swap(mi, ma);       ops++;     }     cout << ops << endl;     return 0;   }   