N = int(input())
P = [0]*(N+1)
s = (N*(N+1))//2
for i in range(N-1,1):
    print("?",1,i)
    s1 = int(input())
    P[i+1] = s-s1
    s = s1
print("?",2,3)
s1 = int(input())
P[2] = s1-P[3]
P[1] = s-P[2]
print("!",*P[1:])