n = int(input())
if n == 0:
    print(-1)
    exit(0)
if n < 10:
    ans = [[-1], [1], [2, 1], [2], [3], [5, 2], [5], [5, 1], [10], [10, 1]]
    print(len(ans[n]))
    print(*(ans[n]))
    exit(0)
ans = []
p = [2, 5, 11, 17, 37, 67, 131, 257, 521, 1031, 2053, 4099, 8209, 16411, 32771, 65537, 131101, 262147, 524309, 1048583, 2097169, 4194319, 8388617, 16777259, 33554467, 67108879, 134217757, 268435459, 536870923, 1073741827, 2147483659, 4294967311, 8589934609, 17179869209, 34359738421, 68719476767, 137438953481, 274877906951, 549755813911, 1099511627791, 2199023255579, 4398046511119, 8796093022237, 17592186044423, 35184372088891, 70368744177679, 140737488355333, 281474976710677, 562949953421381, 1125899906842679, 2251799813685269, 4503599627370517, 9007199254740997, 18014398509482143, 36028797018963971, 72057594037928017, 144115188075855881, 288230376151711813, 576460752303423619, 1152921504606847009]
p.reverse()
idx = 0
tmp = 0
while n > 1:
    x = -1
    while idx < len(p) and len(bin(p[idx] + 1)) == len(bin(n)):
        x = p[idx]
        idx += 1
    if x != -1:
        ans.append(x)
        n ^= x + 1
    else:
        idx += 1
if n == 1:
    ans.append(1)
print(len(ans))
print(*ans)