#include <bits/stdc++.h>
using namespace std;
const int SIZE = 1e5;
double exp(double a, long long b) {
  if (b == 0)
    return 1;
  else if (b & 1)
    return a * exp(a, b - 1);
  else {
    double ans = exp(a, b / 2);
    return ans * ans;
  }
}
int main() {
  cin.sync_with_stdio(0);
  string s;
  cin >> s;
  long long n = s.size();
  double c[n + 1];
  for (int i = 1; i <= n; i++) c[i] = 1.0 / i + c[i - 1];
  double rev[n + 1];
  rev[0] = 0;
  for (int i = 1; i <= n; i++) {
    double n1 = n - i + 1;
    rev[i] = n1 / i + rev[i - 1];
  }
  double ans = 0;
  string temp = "IEAOUY";
  for (int i = 0; i <= n - 1; i++)
    for (int j = 0; j <= 5; j++)
      if (temp[j] == s[i]) {
        long long m = i + 1;
        if (m > n / 2) m = n - m + 1;
        double k = m - 1;
        k += rev[n] - rev[n - (m - 1)];
        ans += k + (m * (c[n - m + 1] - c[m - 1]));
        break;
      }
  cout << setprecision(9) << ans;
  return 0;
}
