X, Y = gets.split.map &:to_i

h = Hash.new(0)

ans = 0

for y in 1..Math.sqrt(Y).floor do
    for x in 0..Math.sqrt(Y).floor do
        rr = y**2 + x**2
        if X <= rr && rr <= Y then
            h[rr] += 1
            ans = [ans, h[rr]].max 
        end
    end
end

puts ans*4