$2\mathrm{.}2\mathrm{.}1$: Python data types.

$546386\mathrm{.}3959570.$qx$3$zqy$7$

Jump to level $1$

Convert the list exampleList to a set exampleSet.

Remove element $7$ from exampleSet.

Find the difference of exampleSet and the set nextSet.

The code provided creates the list exampleList and the set nextSet and prints all results.

exampleSet $=$ # Your code goes here