#include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef templete #define rep(i,a,b) for(int i=a;i=b;i--) #define fore(i,a) for(auto &i:a) #define all(x) (x).begin(),(x).end() //#include //using namespace boost::multiprecision; using namespace std; using namespace atcoder; //using atmint = modint998244353; using atmint = modint; using Graph = vector>; using P = pair; //#pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60; templatebool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } templatebool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } //--------------------------------------------------------------------------------------------------- #endif // templete //--------------------------------------------------------------------------------------------------- void _main() { ll x1 = 100; cout << "? " << x1 << endl; ll ans1; cin >> ans1; ll x2 = x1; ll v = ans1; while(v != -1){ x2--; v--; } cout << "? " << x2 << endl; ll ans2; cin >> ans2; rep(a,0,100)rep(b,a+1,101){ if((a+x1)%b == ans1 && (a+x2)%b == ans2){ cout << "! " << a << " " << b << endl; return; } } while(1){ } }