#include <iostrem>
using namespace std;

int main() {
    string s;
    getline(cin,s);
    int c = 0;
    for(char ch : s)
        if(string("aeiouAEIOU").find(ch) != string::npos) c++;
    if(c == 0)
        cout << "Invalid input There were no vowels in this input";
    else
        cout << c;
}