x1 = 3
print(f"? {x1}", flush=True)
y1 = int(input())

x2 = 100
print(f"? {x2}", flush=True)
y2 = int(input())

for a in range(0, 100):
    for b in range(a+1, 101):
        if (a+x1)%b==y1 and (a+x2)%b==y2:
            print(f"! {a} {b}", flush=True)
            exit()