a,b,c = map(float,input().split())
d = b*b-4*a*c

if d<0:
  print('imaginary')
elif d==0:
  print(-b/(2*a))
else:
  l = [(-b+d**0.5)/(2*a),(-b-d**0.5)/(2*a)]
  l = sorted(l)
  print(*l)