#include<iostream>
using namespace std;
typedef long long ll;
int main(){
    int n,k,i=0,pas=(1<<10);
    cin>>n>>k;
    string response;
    while(k && pas){
        if(i+pas<=n){
            cout << "query " << i+pas << "\n";
            cout.flush();cin >> response;
            if(response == "broke") k--;
            else i+=pas;
        }
        pas>>=1;
    }
    cout << "answer " << i+1 << "\n";
    cout.flush();cin >> response;
    return 0;
}