#include <iostream>

using namespace std;

int main()
{
    int N, K, b = 1, e, x;

    cin >> N >> K;

    e = N;
    x = N / 2;

    string response;

    while (response != "exit"){

        cout << "query " << x << endl << "b = " << b << endl << "e = " << e << endl;
        cout.flush();

        cin >> response;

        if (response == "broke")
            e = x;
        if (response == "survived")
            b = x;
        if (b==e - 1){
            cout << "answer " << x - 1 << endl;
            cin >> response;
        }

        x = b + ((e - b) / 2);

    }

    return 0;
}