a,b,c = gets.split.map(&:to_i)
d = b**2 - 4*a*c
if d < 0
    puts "imaginary"
    exit
end
if d == 0
    puts -b/(2 * a.to_f)
    exit
end
r = [(-b - d**0.5) / (2 * a.to_f), (-b + d**0.5) / (2 * a.to_f)]
puts r.sort.join(" ")