#include<iostream>
#include<vector>
#include<cmath>
#include<iomanip>
#include<cassert>
#include<random>
using namespace std;
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int N;cin>>N;
	cout<<fixed<<setprecision(9);
	random_device rng;
	uniform_real_distribution<long double>distr(0,1);
	long double t0=distr(rng);
	while(true)
	{
		cout<<"1 "<<0.001*cos(t0)<<" "<<0.001*sin(t0)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		if(P=='-')break;
		t0+=M_PI/2;
	}
	t0+=M_PI;
	{
		cout<<"1 "<<0.001*cos(t0)<<" "<<0.001*sin(t0)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		assert(P=='+');
	}
	t0+=M_PI/2;
	while(true)
	{
		cout<<"1 "<<0.001*cos(t0)<<" "<<0.001*sin(t0)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		if(P=='-')break;
		t0+=M_PI/2;
	}
	{
		cout<<"1 "<<0.001*cos(t0+M_PI/2)<<" "<<0.001*sin(t0+M_PI/2)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		assert(P=='-');
	}
	long double lt=t0,rt=t0+M_PI/2;
	for(int i=0;i<120;i++)
	{
		long double t=(lt+rt)/2;
		cout<<"1 "<<0.001*cos(t+M_PI/2)<<" "<<0.001*sin(t+M_PI/2)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		if(P=='-')lt=t;
		else rt=t;
	}
	long double l=0,r=3e8;
	for(int i=0;i<120;i++)
	{
		long double m=(l+r)/2;
		cout<<"1 "<<m*cos(lt)<<" "<<m*sin(lt)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		if(P=='+')r=m;
		else l=m;
	}
	cout<<"2 "<<l/2*cos(lt)<<" "<<l/2*sin(lt)<<" "<<(l/2)*(l/2)<<endl;
}