import sys
input = sys.stdin.readline
def isqrt(n):
    if n == 0: return 0
    x = 1 << (n.bit_length() + 1) // 2
    y = (x + n // x) // 2
    while y < x:
        x = y
        y = (x + n // x) // 2
    return x

S = int(input())
ans = []
now = S
while now!=0:
    tmp = isqrt(now)
    ans.append(tmp**2)
    now -= tmp**2
print(len(ans))
print(*ans)