[ashleney]

pretty sure the point is that it's supposed to be in one line

[xoranth]

It's supposed to be a single expression. You can write multiple lines by encasing the expression with parentheses.

[bagels]

Thanks, not sure if if it's doable without walrus operator, which I've not had the occasion for previously.

[082349872349872]

Possible w/out walrus

(but —due to walrus' rather expansive notions of scope— the sol'ns using it are shorter)