Depends on how deep you're willing to go to really,
You need one of a few arrangements of flip flop circuits to keep 1-bit state.
Going deeper, you need either NAND, or NOR gates(or a bunch of other ones) and connectors.
Even deeper, you'll require diodes or transistors to build the logic gates.
Beyond that is particle physics.
Answer:
미안해요. 나는 우리가 단지 부동일 중 하나를 모르지만 그것을 해결하는 방법을 모른다!.
I think that would be a function