500
Jacky, Victoria, Alaine, and Katelyn were running a Holiday 5K Race.
These are all the possible orders they could have finished in.
What is JVAK, JVKA, JAKV, JAVK, JKAV, JKVA, VAKJ, VAJK, VJAK, VJKA, VKAJ, VKJA, AKVJ, AKJV, AJVK, AJKV, AVKJ, AVJK, KAJV, KAVJ, KVAJ, KVJA, KJAV, KJVA?