import sys
readline=sys.stdin.readline

N=int(input())
P=[None]*N
print("?",2,N)
P[0]=N*(N+1)//2-int(input())
s=P[0]
for i in range(1,N-1):
    print("?",1,i+1)
    P[i]=int(input())-s
    s+=P[i]
P[N-1]=N*(N+1)//2-sum(P[:-1])
print("!",*P)