"""
f(1) = 1
f(2) = 3
f(4) = 7
f(8) = 15
"""
n = int(input())
if n == 0:
    print(-1)
    exit()
bi = bin(n)[2:]
l = len(bi)
A = [1 << (l - 1)]
for i in range(1, l):
    if bi[i] != bi[i - 1]:
        A.append(1 << (l - i - 1))
print(len(A))
print(*A)