S = int(input())

ans = []
while S:
	e = S + 1
	s = 1
	while e - s > 1:
		m = e + s >> 1
		if m * m > S:
			e = m
		else:
			s = m
	ans.append(s * s)
	S -= s * s
print(len(ans))
print(*ans)