N = int(input())
SP = N * (N+1) //2
P = [0] * N
AP = [0] * N
print("?",2,N)
S = int(input())
P[0] = SP - S
AP[0] = P[0]
SP -= P[0]
for i in range(2,N):
    print("?",1,i)
    S = int(input())
    AP[i-1] = S
    P[i-1] = AP[i-1] - AP[i - 2]
    SP -= P[i-1]
P[N-1] = SP
print("!",*P)