#include <iostream>
#include <iomanip>
#include <cassert>
#include <vector>
#include <algorithm>
#include <utility>
#include <numeric>
// #include "Src/Utility/BinarySearch.hpp"
// #include "Src/Sequence/CompressedSequence.hpp"
// #include "Src/Sequence/RunLengthEncoding.hpp"
// using namespace zawa;
// #include "atcoder/modint"
// using mint = atcoder::modint998244353;

int main() {
    std::cout << "? " << 0 << std::endl;
    int b;
    std::cin >> b;
    std::cout << "? " << 1 << std::endl;
    int p;
    std::cin >> p;
    int a = p - b;
    std::cout << "! " << a << ' ' << b << std::endl;
}