N = int(input())
wa = N * (N+1) // 2
c = [0] * (N+1)
c[N] = wa
for r in range(2,N):
    print("?",1,r)
    c[r] = int(input())
print("?",2,N)
s = int(input())
c[1] = wa - s
ans = []
for i in range(N):
    ans.append(c[i+1]-c[i])
print("!",*ans)