class Calc0099
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @n = args.shift.first.to_i
    @xs = args.shift.map(&:to_i)
  end

  def run
    evens = @xs.count(&:even?)
    odds = (@xs.size - evens)
    (evens - odds).abs
  end
end

puts Calc0099.new(STDIN.readlines).run if __FILE__ == $0