a, b, c = map(int, input().split())
d = b ** 2 - 4 * a * c
if d < 0:
    print('imaginary')
elif d == 0:
    print(-b / (2 * a))
else:
    print(*sorted([(-b - d ** .5) / (2 * a), (-b + d ** .5) / (2 * a)]))