I just want to output 2 2
I may know why it happened, but a bit confused what is the correct syntax
HI @elonw,
You’re script seems to be okay! Have you set your z, u, and v inputs to List Access?
You can do that by right-clicking on the input in question.
@p1r4t3b0y It works~ Thanks a lot 
I noticed these for the first time.