/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		boolean vowel[] = new boolean[26];
		vowel['a'-'a']=vowel['e'-'a']=vowel['i' -'a']=vowel['u'-'a']=vowel['o'-'a'] = true;
 
		String test = "somelongcomplextext";
		int count = 0;
		for (char c : test.toLowerCase().toCharArray()) {
			if (vowel[c - 'a']) {
				count ++;
			}
		}
 
		System.out.println(count);
	}
}

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