func_code_string: #include <bits/stdc++.h>   using namespace std;   double pi = 3.141592653589793238462;   string numkey =  0123456789 ;   string uni =  abcdefghijklmnopqrstuvwxyz ;   bool check(char ch) {     string s =  aeiou ;     for (long long int i = 0; i < s.size(); i++) {       if (s[i] == ch) return true;     }     return false;   }   signed main() {     string s;     cin >> s;     long long int n = s.length(), ctr = 0;     set<char> st;     for (long long int i = 0; i < n; i++) {       if (check(s[i]) == false)         ctr++, st.insert(s[i]);       else         ctr = 0, st.clear();       if (ctr > 2 && st.size() > 1) {         st.clear();         cout <<    ;         st.insert(s[i]);         ctr = 1;       }       cout << s[i];     }     return 0;   }   