func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       vector<int> vc;       vc.clear();       for (int i = 1; i <= sqrt(n); i++) {         if (n / i != i) vc.push_back(n / i);       }       int rt = sqrt(n);       cout << rt + vc.size() + 1 << endl;       cout << 0 <<    ;       for (int i = 1; i <= sqrt(n); i++) {         cout << i <<    ;       }       for (int i = vc.size() - 1; i >= 0; i--) cout << vc[i] <<    ;       cout << endl;     }   }   