#include<cstdio>
#include<vector>
#include<cstring>
#include<cmath>
#include<cstdlib>
#include<ctime>
#include<map>
#include<set>
#include<iostream>
#include<queue>
#include<algorithm>
#include<string>

using namespace std;

int N, K, p, buc;

int query (int x)
{
    string ans;
    cout << "query " << x << '\n';
    cout.flush ();
    cin >> ans;
    if (ans == "broke") return 0;
    return 1;
}

void finish (int st, int dr)
{
    for (int i=st; i<=dr; i++)
        if (i == N + 1 || query (i) == 0)
        {
            cout << "answer " << i << '\n';
            cout.flush ();
            string ans;
            cin >> ans;
            return;
        }
}

int main()
{

cin >> N >> K;
if (K == 1)
{
    finish (1, N + 1);
    return 0;
}
for (int p=1; p * (p+1) / 2 <= N; p++)
    if (p * (p+1) / 2 <= N)
        buc = p;
int curr = 0;
for (int i=buc; i>=1; i--)
{
    int v = query (i + curr);
    if (v == 0)
    {
        finish (curr + 1, i + curr);
        return 0;
    }
    curr += i;
}

finish (curr + 1, N + 1);

return 0;
}