"""

100+A % B = C

1回目も有効活用しないとだめ

(100+A) % B = C
(100+A-C-1) % B = B-1

で、Bがわかる
AはB未満なので、一意

"""

import sys
print ("?",100,flush=True)

c = int(input())

if c == 99:
    print ("!",99,100)
    sys.exit()

print ("?",100-c-1,flush=True)
d = int(input())

b = d + 1

for a in range(1,b):
    if (100+a) % b == c:
        print ("!",a,b)
        sys.exit()

a = 0

for b in range(1,101):
    if (a+100) % b == c and (100+a-c-1) % b == d:
        print ("!",a,b)
        sys.exit()