import sys

print("? 99")
sys.stdout.flush()
A99 = int(input())
print("? 100")
sys.stdout.flush()
A100 = int(input())

for A in range(100):
    for B in range(A + 1, 100):
        if (A + 99) % B == A99 and (A + 100) % B == A100:
            print("!", A, B)
            sys.stdout.flush()
            exit()