from heapq import heappush, heappop, heapify
import sys
from collections import defaultdict, deque
from math import ceil, floor, sqrt, factorial, gcd
from itertools import permutations, combinations
from bisect import bisect_left, bisect_right
sys.setrecursionlimit(10**6)
# input = sys.stdin.readline

s = int(input())
ans = []
while s > 0:
    x = floor(s**0.5)
    s -= x*x
    ans.append(x*x)
print(len(ans))
print(*ans)