#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define in(T,V) T V;cin>>V;
int main(){
    int n,k,v; cin>>n>>k;
    for(ll i = (n-1)%(k+1); i <= n-1; i += k+1){
        cout << i << endl;
        cin >> v;
        if(v >= n) break;
    }
}