n=int(input())
ans = [0]*n
print(f'? {1} {2}',flush=True)
t = int(input())
print(f'? {2} {3}',flush=True)
t2 = int(input())

for i in range(1,n+1):
    if t - i == t2 - i:
        ans[1] = i
        break
        
ans[0]=t-ans[1]
ans[2]=t2-ans[1]

ind = 3
while n > ind:
    print(f'? {ind-1} {ind}')
    t=int(input())
    ans[ind] = t - ans[ind-1]
    ind += 1
    

print('!',*ans)