import decimal,math
S=int(input())
ans=[]
for i in range(15):
    lf=0
    ri=10**10
    while ri-lf>1:
    	mid=(lf+ri)//2
    	if mid**2<=S:
    		lf=mid
    	else:
    		ri=mid
    ans.append(lf**2)
    S-=ans[-1]
    if S==0:
        break
print(len(ans))
print(*ans)