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Problem

Read from standard input a string of at most 255 characters, which may contain uppercase letters, lowercase letters, spaces, and punctuation marks. Determine and print the number of vowels in the string.

The vowels are the letters a, e, i, o, u, both in lowercase and uppercase.

Input format

Input input.txt

The program reads from standard input a single line containing the string `s`. - the string has at most `255` characters - the string may be empty (in which case the answer is `0`)

Output format

Output output.txt

The program prints to standard output a single natural number: the count of vowels in the string, followed by a newline.

Example

input
Bacalaureat
output
6

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main() line 1
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