#include <iostream>
#include<string>

using std::cin;
using std::cout;
using std::endl;

char upper(char c)
{
	char result = c;

	if(c >= 'a' && c <= 'z')
	{		
		c -= 32;
	}

	return c;
}

int indexOfFirstVowel(char s[])
{
	int result = -1;

	int i = 0;
	while(s[i] != '\0' && result == -1)
	{
		if(s[i] == 'A' || s[i] == 'E' ||s[i] == 'I' ||s[i] == 'O' ||s[i] == 'U' ||
		  s[i] == 'a' || s[i] == 'e' ||s[i] == 'i' ||s[i] == 'o' ||s[i] == 'u' )
		{
			result = i;
		}
		i++;
	}

	return result;
}

void main()
{
	char s[1000];
	cin.getline(s,1000);

	int i; // store the index of the first space in the string s into i

	char* p;  //p is a pointer to a char
	//a pointer is a variable that stores an address of another variable
	//p = s + 5;
	//strchr returns the address of the first occurance of the char starting
	//from s, going forward until it finds a \0
	//it returns address 0 if it does not find the char
	//NULL - is the address 0
	//\0 is the null terminator
	//0 is zero
	//false is zero

	//p = strchr(s,' ');
	//if(p != NULL)
	//{
	//	i = (int)(p-s);
	//	cout << i << endl;
	//}

	//cout << upper('t') << endl;

	//p = strstr(s,"waldo");
	//if(p != NULL)
	//{
	//	i = (int)(p-s);
	//	cout << i << endl;
	//}

	//cout << indexOfFirstVowel(s) << endl;

	//int j = indexOfFirstVowel(s);
	//char prefix[100];
	//strcpy(prefix,s);
	//prefix[j] = '\0';

	//strcpy(s,s+j);
	//strcat(s,prefix);
	//strcat(s,"ay");
	//cout << s << endl;

}