func_code_string: #include <bits/stdc++.h>   using namespace std;   char A[5] = { a ,  e ,  i ,  o ,  u };   int main() {     int k;     cin >> k;     int rol = 0, col = 0;     for (int i = 5; i <= sqrt(k); ++i) {       if ((k % i == 0) && (k / i >= 5)) {         rol = i;         col = k / i;         break;       }     }     if (rol == 0) {       cout << -1;     } else {       for (int i = 1; i <= rol; ++i) {         for (int j = 0; j < col; ++j) {           cout << A[(i + j) % 5];         }       }     }   }   