func_code_string: #include <bits/stdc++.h>   using namespace std;   bool check(char a) {     if (a ==  a  || a ==  e  || a ==  i  || a ==  o  || a ==  u ) return true;     if (a ==  1  || a ==  3  || a ==  5  || a ==  7  || a ==  9 ) return true;     return false;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     string s;     cin >> s;     int ans = 0;     for (int i = 0; i < s.length(); i++)       if (check(s[i])) ans++;     cout << ans;   }   