from random import randrange

def question(n, m):
    print("?", n, m)
    res = input()
    #test
    # global a, B
    # n, m = int(n), int(m)
    # res = None
    # if n*a < m*B:
    #     res = "<"
    # elif n*a == m*B:
    #     res = "="
    #     a = n*a-m*B
    # else:
    #     res = ">"
    #     a = n*a-m*B
    # print(a)
    #test
    if res == ">":
        return 1
    elif res == "=":
        return 0
    else:
        return -1

def answer(n):
    print("!", n)

if question(1, str(1)+"0"*100) >= 0:
    answer(str(1)+"0"*100)
    exit()

ans = []
for i in reversed(range(100)):
    for j in reversed(range(1, 10)):
        res = question(1, str(j)+"0"*i)
        if 0 <= res:
            ans.append(j)
            break
    else:
        if ans:
            ans.append(0)
if not ans:
    ans.append(0)

answer("".join(map(str, ans)))