#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")

#include <bits/stdc++.h>
using namespace std;

#define el '\n'
#define F first
#define S second

typedef long long ll;
typedef long double ld;

bool multipleTestCases = 0, sublime = 0;
const int N = 4e5 + 5, INF = 1e9 + 5, mod = 1e9 + 7, LOG = 22, SQ = 500;

const ld pi = acos(-1), EPS = 1e-9;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int cns = 100;
int query(string s){
    cout << "? " << s << endl;
    int ans;
    cin >> ans;
    return ans;
}
void doWork() {
    int curState;
    cin >> curState;
    deque<int>pattern(cns);
    for(int i = 0; i < cns; i++){
        pattern[i] = rng() % 2;
        if(pattern[i] == curState) {
            curState = query("right");
            continue;
        }
        query("flip");
        curState = query("right");
    }
    bool ok = false;
    for(int i = cns - 1; i >= 0; i--){
        curState = query("left");
        if(curState != pattern[i]){
            ok = true;
            break;
        }
    }
    // Smaller than 100
    if(ok){
        for(int i = 0; i < cns; i++){
            if(curState) query("flip");
            curState = query("right");
        }
        curState = query("flip");
        int n = 0;
        while (true){
            curState = query("right");
            n++;
            if(curState) break;
        }
        cout << "! " << n << endl;
        return;
    }
    deque<int> last100;
    for(int i = 0; i < cns; i++){
        last100.emplace_back(curState);
        curState = query("right");
    }
    int n = 0;
    assert(last100 == pattern);
    while (true){
        n++;
        last100.pop_front();
        last100.emplace_back(curState);
        curState = query("right");
        if(last100 == pattern){
            cout << "! " << n << endl;
            break;
        }
    }
}

signed main() {
#ifdef ONLINE_JUDGE
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#endif
#ifndef ONLINE_JUDGE
    if (sublime) {
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    }
#endif
    int tests = 1;
    if (multipleTestCases) {
        cin >> tests;
    }
    for (int tc = 1; tc <= tests; tc++) {
        doWork();
    }
}