def main():
    N = int(input())
    P = []
    result = []
    for idx in range(2, N):
        print(f"? {idx} {N}", flush=True)
        response = int(input())
        result.append(response)
        if idx == 2:
            P.append(N * (N + 1) // 2 - response)
        elif idx >= 3:
            P.append(result[-2] - result[-1])

    print(f"? {1} {N-1}", flush=True)
    response = int(input())
    last = N * (N + 1) // 2 - response
    P.append(result[-1] - last)
    P.append(last)
    print("! " + " ".join(map(str, P)), flush=True)


if __name__ == "__main__":
    main()