import sys

print("? 100")
sys.stdout.flush()
r = int(input())
if r == 99:
    print("! 99 100")
    exit()
print("? {}".format(100 - r - 1))
sys.stdout.flush()
B = int(input()) + 1
A = (r - 100) % B
print("! {} {}".format(A, B))