Count the words

Problem

A message is typed on one line. Words are separated by one or more spaces, and the line may start or end with spaces. Print how many words it has. The starter holds a program with a bug. Find it and fix it.

Input, output and limits

Input: One line of text.
Output: One integer: the number of words.
Constraints: The line has 1 to 200 characters
Letters and spaces only, with at least one letter

Examples

Example 1

Input

hello world

Output

Two words.

Example 2

Input

  two   words

Output

Extra spaces do not make extra words.

Hints

Try the problem first. Open one hint at a time.

Hint 1

Split the text so that runs of spaces count as one separator.

Hint 2

split() with no argument does that.

Write your Python code, run it on the examples and submit it to hidden tests.

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