#include<bits/stdc++.h>
using namespace std;

int x,y,a[505][505],val,st=0,dr=199,pivot,i,j;
bool u;

int main()
{
  ios_base::sync_with_stdio(0); cin.tie(0);

  srand(time(NULL));

  while(st<=dr)
  {
  	pivot=(st+dr)/2;
  	cout<<pivot<<' '<<y<<'\n'; cout.flush();
  	cin>>val; a[pivot][y]=val;

	if(!val) return 0;

	if(val>0) dr=pivot-1;
	else st=pivot+1;
  }

  for(i=0;i<200;++i)
   for(j=0;j<200;++j)
   if(a[i][j]<0) x=i;

  for(i=0;i<=x;++i)
  {
    cout<<i<<" 199\n"; cout.flush();
    cin>>val; a[i][199]=val;

    if(!val) return 0;
    if(val<0) continue;

    st=0; dr=199;
    while(st<=dr)
    {
      pivot=(st+dr)/2;
      while(a[i][pivot] && pivot>st) --pivot;
      if(a[i][st]) break;
      cout<<i<<' '<<pivot<<'\n'; cout.flush();
  	  cin>>val; a[i][pivot]=val;

	  if(!val) return 0;

	  if(val>0) dr=pivot-1;
	  else st=pivot+1;
    }
  }

 return 0;
}