#include <iostream>
using namespace std;
typedef long long ll;

int main(){
  ll n,k; cin>>n>>k;
  ll a=(n-1)%(k+1);

  while(1){
    if(a>=n) break;
    cout<<a<<endl;
    cout<<flush;
    ll b;
    cin>>b;
    a+=k+1;
  }

  return 0;
}