func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 5e2 + 10;   int ans, mac, n;   int main() {     ios_base::sync_with_stdio(false);     cin >> n;     while (ans < n) {       mac += 5;       int x = mac;       while (x % 5 == 0) {         x /= 5;         ans++;       }     }     if (ans == n) {       cout << 5 <<   n ;       for (int i = mac; i < mac + 5; ++i) {         cout << i <<    ;       }       cout <<   n ;       return 0;     }     cout << 0 <<   n ;     return 0;   }   