S=int(input())

ans=[]
rest=S
for i in range(15):
  l,r=0,10**10
  while r-l>1:
    m=(l+r)//2
    if m**2>rest:
      r=m
    else:
      l=m
  rest-=l**2
  if l==0: break
  ans.append(l**2)
print(len(ans))
print(*ans,sep=" ")