#include <iostream>
#include <cstring>
using namespace std;
int apcar(char * s , char c)
{
int cnt = 0;
for(int i = 0 ; s[i] ; i++)
if(s[i] == c)
cnt ++;
return cnt;
}
int main(){
char s[256], v[]="aeiouAEIOU";
cin.getline(s, 256);
int cnt = 0;
for(int i = 0 ; v[i] ; i ++)
cnt += apcar(s, v[i]);
cout << cnt;
return 0;
}