x1 = 100
print(f"? {x1}", flush=True)
y1 = int(input())

if y1==99:
    print(f"! 99 100")
    exit()

x2 = x1 - y1 - 1
print(f"? {x2}", flush=True)
y2 = int(input())
print(f"! {(y2-x2)%(y2+1)} {y2+1}" ,flush=True)