s=int(input())
a=[]
while s>0:
  ok=0
  ng=s+1
  while ng-ok>1:
    m=(ok+ng)//2
    if m**2<=s:
      ok=m
    else:
      ng=m
  a+=[ok**2]
  s-=ok**2
print(len(a))
print(*a)