N = int(input())

import sys
if N == 0:
    print(-1)
    exit()
if N == 1:
    print(1)
    exit()

ans = []
k = N.bit_length()
ans.append(1 << (k-1))
now = (1 << k) - 1
for i in range(k-1,-1,-1):
    mask = 1 << i
    if now & mask and N & mask == 0:
        ans.append(mask)
        now ^= mask
    elif now & mask == 0 and N & mask:
        ans.append(mask)
        now ^= mask
print(len(ans))
print(*ans)