Need a easy way to write out sample space.

The question is really simply and I have the answer but I was hoping someone could explain a easy way to do it this in the future.

Question:A family consisting of three personsA, B, and Cbelongs to a medical clinic that always has a doctor at each of stations 1, 2, and 3. During a certain week, each member of the family visits the clinic once and is assigned at random to a station. The experiment consists of recording the station number for each member. One outcome is (1, 2, 1) for A to station 1, B to station 2, and C to station 1

So I know there will 27 things in the sample space but I struggling to just writing out all 27 way is there a easy way to write out the sample space?