print("? 100")
y = int(input())
if y<=49:
    x = 99-2*y
    print(f"? {x}")
    z = int(input())
    B = y+1+z
    A = (y-100)%B
else:
    print(f"? 1")
    a = int(input())
    A = a-1
    B = 100+A-y
print(f"! {A} {B}")