Determine the number of different vowels that appear in a given sentence.

Input

A single line of text.

Output

A single line describing the number of different vowels that appear in the text. No distinction must made between uppercase and lowercase letters in counting the number of vowels.

Example

Input:

And now for something completely different.

Output:

The sentence contains 4 different vowels.

Example

Input:

Spam! Spam! Spam! Spam! Spam! Spam!

Output:

The sentence only contains 1 different vowel.

Example

Input:

Nbdy xpcts th Spnsh nqstn!

Output:

The sentence contains no vowels.