$1\mathrm{.}17$ LAB: Warm up: Hello world

This zyLab activity prepares a student for a full programming assignment. Warm up exercises are typically simpler and worth fewer points than a full programming assignment, and are well$-$suited for an in$-$person scheduled lab meeting or as self$-$practice.

For each of the following steps, end the program's output with a newline.

$(1)$ Write a program that outputs the following. $($Submit for $1$ point$)$:

Hello world!

$(2)$ Update to output the following. $($Submit again for $1$ more point, so $2$ points total$).$

Hello world!

How are you?

$(3)$ Finally, update to output the following. $($Submit again for $1$ more point, so $3$ points total$).$

Hello world!

How are you?

$($I$\text{'}$m fine$).$

Hint: The 'character is printed by the two character sequence I$\text{'}.$ Ex: print$(\text{'}$I$")$

$547148\mathrm{.}3154642\mathrm{.}9329y?$