n = int(input())
l = list()
f = [i+1 for i in range(n)]
for i in range(1,n+1):
    print('?', n-1)
    print(*(f[:i-1] + f[i:]))
    g = int(input())
    if not g: l.append(i)
print('!', len(l))
print(*l)