Count Vowels in a String

Given a single string S, count the number of vowels present in it. Vowels are defined as the characters \(a, e, i, o, u\) and the check is case-insensitive. Your solution should read the input from standard input and print the result to standard output.

Example: For input Programming, the output should be 3 because the vowels are 'o', 'a', and 'i'.

inputFormat

The input consists of a single line that contains the string S. The string can include spaces, digits, and punctuation.

outputFormat

Output a single integer representing the number of vowels in the string.

Programming

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