let's say I have some (n) random numbers 12, 13, and 18. I want to calculate some unique value from these three such that if I change their order 13, 12, 18 or 18, 12, 13..whatever order they are in, the algorithm allows me to reproduce the same unique value from them.
Also no other set of numbers should produce that unique value with the same function. how can this be done?
plz fix tags: I am not sure which ones will be appropriate for this question
clarification: the unique value has to be a number