import sys, time, random
from collections import deque, Counter, defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
from math import isqrt
n = ii()
N = n
ans = []
while n > 0:
    ans.append(isqrt(n) ** 2)
    n -= ans[-1]
assert sum(ans) == N
print(len(ans))
print(*ans)