This is an app called Cube Timer. It generates random (for simplicity's sake, we can just pretend that it is truly random) scrambles for Rubik's cubes. The strange looking strings of numbers, letters and apostrophes are sets of 19 moves to perform on a solved Rubik's cube to give it a completely unique scramble for a person to solve the cube again and repeat. I had a freak occurrence happen to me where I was randomly given a particular scramble by the app and then a month later, was randomly given the same scramble. There are 12 possible different moves that it can generate and it generates them as a set of 19 consecutive moves. It is also written into the app to not repeat the same move twice in a row so each move from the second one onwards has 10 possibilities (the 12 moves are 90 degree and 180 degree turns of each of the 6 sides so each move eliminates 2 possible moves from the move that comes after it). I know how to calculate the probability of me getting two of the same scramble. But if I knew (or could reasonably estimate) how many total users of this app that there were and how many solves each of these other users have performed on the app, I'm wondering if that will affect the likelihood of this freak occurrence happening somewhere to someone on the app. I have a suspicion that the probabilities are isolated from one another from user to user because of both scrambles needing to come about from the same user but I'm not sure.