X, Y = gets.split.map(&:to_i)
R = Math.sqrt(Y).ceil
C = Hash.new(0)
(-R .. R).each do |x|
  (-R .. R).each do |y|
    r = x ** 2 + y ** 2
    C[x ** 2 + y ** 2] += 1 unless r < X || r > Y
  end
end
puts C.values.max