import sys

print("? 1")
sys.stdout.flush()
A = int(input())
if A >= 1:
    A -= 1
    print("? 100")
    sys.stdout.flush()
    A2 = int(input())
    for B in range(A + 1, 101):
        if (A + 100) % B == A2:
            break
    print("!", A, B)
    sys.stdout.flush()

else:
    print("? 100")
    sys.stdout.flush()
    A2 = int(input())
    for B in range(1, 101):
        if 99 % B == A2:
            break
    print("!", B - 1, B)
    sys.stdout.flush()