# import系 ---

# 入力用 ---
INT = lambda: int(input())
MI = lambda: map(int, input().split())
MI_DEC = lambda: map(lambda x: int(x) - 1, input().split())
LI = lambda: list(map(int, input().split()))
LI_DEC = lambda: list(map(lambda x: int(x) - 1, input().split()))
LS = lambda: list(input())
LSS = lambda: input().split()



# コード ---
from math import isqrt
S = INT()

A = []

while S > 0:
    sqrt_S = isqrt(S)
    A.append(sqrt_S**2)
    S -= sqrt_S**2

print(len(A))
print(*A)