#include <iostream>
using namespace std;

int N,K,x,L,R,mij;

int main()
{
    cin >> N >> K;
    string response;

    L = 0;
    R = N;

    while(response != "exit")
    {

        mij = (L+R)/2;

        cout << "query " << mij << "\n";
        cout.flush();

        cin >> response;

        if (response == "broke")
        {
            K--;
            R = mij-1;
        }
        else
        {
            L = mij+1;
        }


        if (L == R)
        {
            cout << "answer" << L << '\n';
            cout.flush();
            cin >> response;
        }

    }
}