Fix the indentation

Created on Jan. 14, 2022 by Julien Palard

In the given snippet, there's a bug: there's no indentation.

Your goal is to fix it (by just adding 4 spaces at the right place).

The code should display:

1
2
3
4
5

Gonna knock three times:
*knock*
*knock*
*knock*
- Who's there?

What's indentation?

As you may have guessed by reading the actual code, after the for line asking Python to repeat three times, Python can't guess what should be repeated: should Python only repeat print("*knock*") or should Python print the two following print?

To indicate this in Python we do use 4 spaces in front of the lines, like this:

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2

for i in range(5):
    print("Hello")

which will display:

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2
3
4
5

Hello
Hello
Hello
Hello
Hello