print('?', 100, flush=True)
q1 = int(input())
if q1 == 99:
	print('!', 99, 100, flush=True)
	exit()
print('?', 100 - q1 - 1, flush=True)
q2 = int(input())
B = q2 + 1
for A in range(B):
	if (A + 100) % B == q1:
		print('!', A, B, flush=True)
		exit()