n = int(input())
print("?", 2, n)
s = n*(n+1)//2-int(input())
p = [s]
for i in range(n-2):
    print("?", 1, i+2)
    p.append(int(input())-s)
    s += p[i+1]
p.append(n*(n+1)//2-s)
print("!", *p)