from math import sqrt
a, b, c = map (int, input().split())
if b**2-4*a*c < 0:
    print("imaginary")
elif b**2-4*a*c == 0:
    print(-b/(2*a))
else:
    print(" ".join(sorted(list(map(str, [(-b-sqrt(b**2-4*a*c))/(2*a), (-b+sqrt(b**2-4*a*c))/(2*a)])))))