#! ruby
# yukicoder My Practice
# author: Leonardone @ NEETSDKASU

N = gets.to_i
C = gets.split.map(&:to_i)

allvote = C.inject(:+)

money = 0

C.each do |x|
	if (x.to_f / allvote.to_f) <= 0.1
		money += 300000
	end
end

puts money