class Calc0169
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @k = args.shift.first.to_i
    @s = args.shift.first.to_i
  end

  def run
    @s * 100 / (100 - @k)
  end
end

puts Calc0169.new(STDIN.readlines).run if __FILE__ == $0