# frozen_string_literal: true

N, K = gets.chomp.split.map(&:to_i)
As = N.times.map { gets.to_i }

result = 0
remain = K
weights = As
loop do
  weights = weights.select { |i| i <= remain }.sort
  break if weights.empty?

  w = weights.pop
  result += w
  remain -= w
end

puts result