x1 = 100
print(f"? {x1}")
y1 = int(input())
if y1 == 99:
    print("! 99 100")
    exit()

x2 = 99 - y1
print(f"? {x2}")
y2 = int(input())
b = y2 + 1
for i in range(b):
    if (100 + i) % b == y1:
        a = i
print(f"! {a} {b}")