C++ :

#include<bits/stdc++.h>
using namespace std;
string s;
int ans;
int main()
{
	cin>>s;
	for(int i=0;i<s.size();i++)
		if(s[i]=='A' || s[i]=='E' || s[i]=='I' || s[i]=='O' || s[i]=='U' || s[i]=='a' || s[i]=='e' || s[i]=='i' || s[i]=='o'  || s[i]=='u') ans++;
	cout<<ans;
	return 0;
}