Reading about how these are generally made of an even number of cars reminded me of this[1]. [1] https://www.cs.utexas.edu/users/EWD/ewd05xx/EWD594.PDF https:/

Reading about how these are generally made of an even number of cars reminded me of this[1]. [1] https://www.cs.utexas.edu/users/EWD/ewd05xx/EWD594.PDF https://www.cs.utexas.edu/users/EWD/ewd05xx/EWD594.PDF