Given a line of text, count the vowels! For this problem,
the only vowels are A, E, I, O and U, both upper
and lower case. No other letters will be considered vowels for
the purposes of this problem.
Input
The single line of input contains a single string
$s$ ($1 \le s \le 80$), which consists of
ASCII text, with no special characters. There will be only
letters, numbers, printable symbols, and spaces. There will be
no control characters, and the only white space will be the
space character. The string $s$ is guaranteed to have at least one
nonwhitespace character
Output
Output a single line with a single integer, which is the
number of vowels in $s$.
Sample Input 1 
Sample Output 1 
This is a test.

4

Sample Input 2 
Sample Output 2 
How many vowels in sky?

5

Sample Input 3 
Sample Output 3 
Can you handle both CAPITAL and lower case?

14

Sample Input 4 
Sample Output 4 
D. J. Pike flung Q. V. Schwartz my box.

5
