#pragma region Macros
#include <bits/stdc++.h>
#include <atcoder/all>
#if defined(LOCAL) || defined(_DEBUG)
#include "debug.hpp"
#else
#define O(...)
#define START()
#define STOP()
#define MEMORY()
#endif
using namespace std;
#define REP(i, n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define REPR(i, n) for(int i=(n); i>=0; --i)
#define FOR(i, n, m) for(int i=(m), i##_len=(n); i<i##_len; ++i)
#define EACH(i, v) for(const auto& i : v)
#define ALL(x) (x).begin(),(x).end()
#define ALLR(x) (x).rbegin(),(x).rend()
template<class T, class U>bool chmax(T &a, const U &b) { if (a<(T)b) { a=(T)b; return 1; } return 0; }
template<class T, class U>bool chmin(T &a, const U &b) { if (b<(T)a) { a=(T)b; return 1; } return 0; }
#define vec vector
#define umap unordered_map
#define uset unordered_set
using ll = long long;
using ld = long double;
using P = pair<ll, ll>;
using Tup = tuple<ll, ll, ll>;
using vl = vec<ll>;
#define fi first
#define se second
#define el endl
constexpr ll INF = numeric_limits<ll>::max()/2-1;

template<class T>
istream &operator>>(istream &stream, vec<T>& o){REP(i, o.size())stream >> o[i];return stream;}
#define I(T, ...) ;T __VA_ARGS__;__i(__VA_ARGS__);
void __i() {}
template<class T, class... Ts> void __i(T&& o, Ts&&... args){cin >> o;__i(forward<Ts>(args)...);}
#pragma endregion

void Main();

int main(){
    std::cin.tie(nullptr);
    std::cout << std::fixed << std::setprecision(15);
    Main();
    MEMORY();
    return 0;
}

vec<P> l(ll x, ll y) {
    vec<P> res;
    REP(b, 101) {
        REP(a, b) {
            if((a + x) % b == y) {
                res.push_back({a, b});
            }
        }
    }
    return res;
}

ll nextans(ll ret) {
    auto ts = l(100, ret);
    // 次に聞く数
    FOR(k, 101, 1) {
        vl r;
        vec<pair<P, ll>> out;
        EACH(t, ts) {
            auto [a, b] = t;
            r.push_back((a + k) % b);
            out.push_back({t, (a + k) % b});
        }
        sort(ALL(r));
        r.erase(unique(r.begin(), r.end()), r.end());
        if(ts.size() == r.size()) {
            //O(j, k);
            //O(out);
            return k;
        }
    }
    return -1;
}

ll test() {
    // 戻ってきた数
    REP(j, 100) {
        bool flg = false;
        ll nxt = nextans(j);
        if(nxt == -1) {
            O(j);
        }
    }
}

void Main(){
    //test();return;
    cout << "? 100\n" << flush;
    I(ll, x);
    ll nxt = nextans(x);
    cout << "? " << nxt << el << flush;
    I(ll, y);
    REP(b, 101) {
        REP(a, b) {
            if((a + 100) % b == x && (a + nxt) % b == y) {
                cout << "! " << a << " " << b << el << flush;
                return;
            }
        }
    }
}