class Input_kyopro:
    def II(self): return int(input())
    def MI(self): return map( int,input().split())
    def MS(self): return map(str,input().split())
    def LMI(self): return list(self.MI())
    def LMS(self): return list(self.MS())
    def LLI(self,N): return [self.LMI() for _ in range(N)]
    def LLS(self,N): return [self.LMS() for _ in range(N)]
    def LS(self,N): return [input() for _ in range(N)]
    def LSL(self,N): return [list(input()) for _ in range(N)]
    def LI(self,N): return [self.II() for _ in range(N)]
I=Input_kyopro()
#入力

def max_heihou(x):
    ok=1
    ng=10**18
    while abs(ok-ng)>1:
        mid=(ok+ng)//2
        if mid*mid<=x:
            ok=mid
        else:
            ng=mid
    return ok
S=I.II()
ans=[]
while S>0:
    ans.append(max_heihou(S)**2)
    S-=max_heihou(S)**2
print(len(ans))
print(*ans)