S = int(input())

s = S
ans = []
while s > 0:
    l = 1
    r = s
    while r - l > 1:
        m = (l + r) // 2
        if m**2 <= s:
            l = m
        else:
            r = m            
    p = l
    s -= p**2
    ans.append(p**2)

print(len(ans))
print(*ans, sep=' ')