func_code_string: #include <bits/stdc++.h>   using namespace std;   bool is_vowel(const char c) {     for (const char vowel : { a ,  e ,  i ,  o ,  u })       if (c == vowel) return true;     return false;   }   bool is_block_ok(const array<char, 3> cs) {     for (const char c : cs)       if (is_vowel(c)) return true;     return cs[0] == cs[1] && cs[1] == cs[2];   }   int main() {     string s;     cin >> s;     const int n = int(s.length());     int start = 0;     for (int i = 0; i < n; i++) {       if (i >= start + 2 && !is_block_ok({s[i - 2], s[i - 1], s[i]})) {         cout <<    ;         start = i;       }       cout << s[i];     }     cout << endl;   }   