Create a list practiceList$1$ with elements $9,\text{'}$b$\text{'},$ and $12.$

Replace the first element with $\text{'}$y$\text{'}.$

Append $20$ to practiceList$1.$

Remove the second element from practiceList$1.$

Combine practiceList$1$ with the list practiceList$2.$

The code provided displays all results and creates the second list, practiceList$2.$

$$

The list practiceList$1$ is created using practiceList$1=[9,\text{'}$b$\text{'},12].$

The first element is replaced with $\text{'}$y$\text{'}$ using practiceList$1[0]=\text{'}$y$\text{'}.$

The element $20$ is appended to practiceList$1$ using practiceList$1.$append$(20).$

The second element is removed from practiceList$1$ using practiceList$1.$pop$(1).$

practiceList$1$ is combined with practiceList$2$ using combinedList $=$ practiceList$1+$ practiceList$2.$

Not all tests passed.

$1$: Compare output

File $"/$home$/$runner$/$local$/$submission$/$student$/$main$.$py$",$ line $4$ practiceList$1=$ # Your code goes here $^^^^^^^^^^^^^^^^^^^^^$ SyntaxError: invalid syntax

Your output

Your program produced no output

Expected output

$[9,\text{'}$b$\text{'},12][\text{'}$y$\text{'},\text{'}$b$\text{'},12][\text{'}$y$\text{'},\text{'}$b$\text{'},12,20][\text{'}$y$\text{'},12,20][\text{'}$y$\text{'},12,20,$ 'fox', $102]$