S = int(input())

ans = []
while S > 0:
    l = 1
    r = int(S**0.5) + 5
    while r - l > 1:
        m = (r + l) // 2
        if m**2 > S:
            r = m
        else:
            l = m
    a = l**2
    ans.append(a)
    S -= a

print(len(ans))
print(*ans)