print('?', 100)
y = int(input())
if y == 99:
    print('!', 99, 100)
else:
    print('?', 100 - y - 1)
    y2 = int(input())
    b = y2 + 1
    for a in range(0, 100):
        if (a + 100) % b == y and (a + 100 - y - 1) % b == y2:
            print('!', a, b)
            break