#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    /*
       aa, ab, ba, ac, ca, ...
    */

    char c, d;
    string res, S;
    cin >> c;
    cout << "? " << c << c << endl;
    while(1){
        cin >> d >> res;
        if (d == '!') break;
        reverse(res.begin(), res.end());
        cout << "? " << res << endl;
    }

    return 0;
}