Well what's the correct interpretation? If you want to make clear that your idea is the second interpretation you might say: "Two cards A and B are respectively labeled 1 and 2" As for the first interpretation you have: "Two cards A and B are both labeled 1 and 2" Hope this helps you.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Yoyoimut"There are N cards labeled a single distinct number from 1 to N each."There are N cards, each labeled with a single, distinct number from 1 to N.