just ype answer. 8 and submit directyelly, don't click run the code.

Can somebody explain how the answer is 8?

Do you want to know how to build a transparent and guided selling system viable in almost any economic environment and ensure stable performance growth? Someone thinks that this is unrealistic. And you will do it, having received the construction scheme, tools, examples!

Union of both sets. Count how many unique items there are present in both sets

@sujeetsingh12161 But why 8?