Number of words#909

Number of words

1 second
128 megabytes
Very easy

Determine the number of words in the given text fragment.

Input

The only line contains a fragment of text in English, with a length not exceeding characters. It is guaranteed that the text does not contain hyphens, dashes, or digits.

Output

Print the number of words in the text fragment.

Examples

Example 1

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Example 2

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