#include<bits/stdc++.h> using namespace std; string a; int ans; int main(){ cin>>a; for(int i=1;i<=a.size();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'){ ans++; } } cout<<ans; return 0; }