# -*- coding: utf-8 -*- 

def idou(x,y,dx,dy):
	x2 = x + dx
	y2 = y + dy
	return x2,y2
def Kaiten(x,y,t):
	if t == 90:
		x2 = -y
		y2 = x
		return x2,y2
	elif t == 180:
		x2 = -x
		y2 = -y
		return x2,y2
	elif t == 270:
		x2 = y
		y2 = -x
		return x2,y2
	elif t == 0:
		return x,y
	
M = int(input())
P = []
for m in range(M):
	x,y = map(int,input().split())
	P.append([x,y])
	
print("?",P[0][0],P[0][1],flush = True)
x1,y1 = map(int,input().split())
if M == 1:
	print("!",flush =True)
	print(x1,y1,flush = True)
elif M > 1:
	print("?",P[1][0],P[1][1],flush = True)
	x2,y2 = map(int,input().split())
	arg = [P[0][0] - P[1][0],P[0][1] - P[1][1],x1 - x2, y1 - y2]
	if arg[0] == arg[2] and arg[1] == arg[3]:
		kaiten = 0
	elif arg[0] == arg[3] and arg[1] == -arg[2]:
		kaiten = 90
	elif arg[0] == -arg[3] and arg[1] == arg[2]:
		kaiten = 270
	elif arg[0] == -arg[2] and arg[1] == -arg[3]:
		kaiten = 180
	a,b = P[0][0],P[0][1]
	for i,p in enumerate(P):
		
		P[i][0],P[i][1] = idou(p[0],p[1],-a,-b)
	for i,p in enumerate(P):
		P[i][0],P[i][1] = Kaiten(p[0],p[1],kaiten)
	for i,p in enumerate(P):
		P[i][0],P[i][1] = idou(p[0],p[1],x1,y1)
	print("!",flush = True)
	for p in P:
		print(p[0],p[1],flush = True)