class Yukicoder
  def initialize
    n, m = gets.chomp.split(' ').map(&:to_i)
    c = gets.chomp.split(' ').map(&:to_i).sort

    list = c.inject([0]){|e, s| e << e.last + s}

    puts list.rindex{|e| e <= m}
  end
end

Yukicoder.new