func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 70, MAXM = 100, MOD = 1e9 + 7, INF = 1e9;   char c[] = { c ,  o ,  d ,  e ,  f ,  o ,  r ,  c ,  e ,  s };   void solve() {     long long n;     cin >> n;     long long x = 0, x1 = 0;     while (pow(x + 1, 10) <= n) x++;     while (pow(x, 10 - x1) * pow(x + 1, x1) < n) x1++;     for (int i = 0; i < 10; i++) {       if (i < x1)         for (int j = 0; j <= x; j++) cout << c[i];       else         for (int j = 0; j < x; j++) cout << c[i];     }   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     solve();   }   