Write a function echo that always returns what is passed as a parameter to the function.

Output

The same text is returned that is given between the brackets of the function.

Example

Example notation

To make a clear distinction between input and output in the example below, the input is preceded by three major characters and a space (>>>). Furthermore, that notation has no meaning. The output is against the left margin.

>>> echo("Hello world!")
"Hello world!"
>>> echo(5)
5