N = int(input())
if N == 0:
    print(-1)
    exit()
B = bin(N)[2:]

now = 0
div = []
ans = []
for i in range(len(B)):
    if int(B[i]) != now:
        div.append(pow(2, len(B) - i) - 1)
        ans.append(pow(2, len(B) - i - 1))
        now = 1 - now

print(len(ans))
print(*ans)