K = int(input())
for N in range(1, 251):
    for cnt_1 in range(N + 1):
        for cnt_2 in range(N + 1 - cnt_1):
            cnt_3 = N - (cnt_1 + cnt_2)
            if cnt_1 * (cnt_1 - 1) // 2 + cnt_1 * cnt_2 + cnt_2 * cnt_3 == K:
                ans = [1] * cnt_1 + [2] * cnt_2 + [3] * cnt_3
                print(N)
                print(*ans)
                exit()