a, b, c = io.read("*n", "*n", "*n")
d = b * b - 4 * a * c
if d < 0 then
  print("imaginary")
elseif d == 0 then
  print(-b / 2 / a)
else
  f = (-b - math.sqrt(d)) / 2 / a
  g = (-b + math.sqrt(d)) / 2 / a
  if g < f then f, g = g, f end
  print(f .. " " .. g)
end