X, Y = gets.split.map(&:to_i)
S = Math.sqrt(X).ceil
L = Math.sqrt(Y).floor

counter = Hash.new(0)

S.upto(L) do |x|
  counter[x ** 2] += 1
end

L.times do |y|
  dy = y ** 2

  L.times do |x|
    dx = x ** 2
    v = dy + dx

    next if v < X
    next if Y < v

    counter[v] += 1
  end
end

puts counter.values.max * 4