X, Y = gets.split.map(&:to_i)
R = Integer.sqrt(Y)
C = Hash.new(0)
fmax = 0

x = 1
while x <= R
  x2 = x ** 2
  
  ymin = Integer.sqrt(max(0, X - x2))
  ymax = Integer.sqrt(Y - x2) + 1
  
  y = ymin
  while y < ymax
    r2 = x2 + y ** 2

    unless r2 < X || r2 > Y 
      C[r2] += 1 
      fmax = C[r2] if fmax < C[r2]
    end
    y += 1
  end
  
  x += 1
end

puts fmax * 4