n=int(input())
A=[]
for i in range(n-2):
	print(i+1,i+2,flush=True)
	A.append(int(input()))
if n&1:
	print(n-1,n,flush=True)
	A.append(int(input()))
	t=sum([A[i] for i in range(0,n,2)])
	u=n*(n+1)//2-t
	ans=[u]
	for i in range(n-1)[::-1]:
		ans.append(A[i]-ans[-1])
	print(*ans[::-1])