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 $\text{'}$ character is printed by the two character sequence $\backslash \text{'}.$ Ex: print$(\text{'}\backslash \text{'}\text{'})$