Five pirates come across a treasure chest with gold coins. Each of the pirates have a distinct level of seniority. The most senior pirate comes up with a proposal as to how they should split the coins. Then, all five pirates must vote on whether they agree to this proposal. The vote will pass with at least of the votes in favor. If the vote passes, everyone lives and gets coins according to the distribution. If it doesn't, the most senior pirate must walk the plank. Assume that each pirate is rational; their first priority is living, and the second priority is maximizing coin gain. How many coins does the most senior pirate get, if any?