from sys import stdin
input = stdin.buffer.read

def ask(x):
    print(f'? 1 {x + 1}')
    return int(input())

def answer(d):
    print('!', *d)

n = int(input())
ans = []
sm = 0
for i in range(n - 1):
    x = ask(i) - sm
    ans.append(x)
    sm += x

x = n * (n + 1) // 2 - sm
ans.append(x)
answer(ans)