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

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
constexpr int MOD = 1'000'000'000;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    auto query = [&](int x) {
        cout << "walk " << x << endl;
        int y;
        cin >> y;
        return y;
    };

    auto answer = [&](int x) {
        cout << "guess " << x << endl;
    };

    int mx = 0;
    
    auto getRnd = [&]() {
        return (rnd() % MOD + MOD) % MOD;
    };

    int res;
    for (int i = 0; i < 3333; ++i) {
        res = query(getRnd());
        mx = max(mx, res);
    }

    map<int, int> mp;
    mp[res] = 0;

    for (int i = 0; i < 3333; ++i) {
        res = query(1);
        mx = max(mx, res);
        auto it = mp.find(res);
        if (it != mp.end()) {
            answer(i + 1);
            return 0;
        }
        mp[res] = i + 1;
    }
    int cnt = 3333;
    cnt += mx;
    res = query(mx);
    auto it = mp.find(res);
    if (it != mp.end()) {
        answer(cnt - it->second);
        return 0;
    }
    for (int i = 0; i < 3333; ++i) {
        res = query(3333);
        cnt += 3333;
        auto it = mp.find(res);
        if (it != mp.end()) {
            answer(cnt - it->second);
            return 0 ;
        }
    }
    return 0;
}

/*
25314
*/