n = int(input())
ans = [0] * n
tmp = 0
for i in range(n-1):
	if i == 0:
		print(f"? 2 {n}")
		g = int(input())
		ans[0] = n*(n+1)//2 - g
		tmp = ans[0]
	else:
		print(f"? 1 {i+1}")
		g = int(input())
		ans[i] = g - tmp
		tmp = g

ans[n-1] = n*(n+1)//2 - sum(ans)
print("!", *ans)