#include<iostream>
using namespace std;
int main()
{
    string a;
    int b;
    cin>>a;
    b=a.legth();
    int c=0;
    for(int i=0;i<b;i++)
    {
        if(a[i]=='a'  || a[i]=='e'  || a[i]=='i'  || a[i]=='o'  || a[i]=='u'  || a[i]=='A'  || a[i]=='E'  || a[i]=='I'  || a[i]=='O'  || a[i]=='U')
        {
          c+=1;  
        }
    }
    cout<<c;
}