A, B, C = map(int, input().split())
hanteishiki = B**2-4*A*C
if hanteishiki < 0:
    print('imaginary')
    exit()

D = []
D.append(((-1*B)-(hanteishiki)**0.5)/(2*A))
D.append(((-1*B)+(hanteishiki)**0.5)/(2*A))
D = sorted(D)

if D[0] == D[1]:
    print(D[0])
else:
    print(*D)