import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

n = ni()

a = []
for i in range(15):
    if n == 0:
        break
    ok = 0
    ng = 10**18
    while ng-ok>1:
        d = (ok+ng)>>1
        if d*d <= n:
            ok = d
        else:
            ng = d
    a.append(ok**2)
    n -= ok*ok
print(len(a))
print(*a)