#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 "<<0.5*cos(t0)<<" "<<0.5*sin(t0)<<endl;
		char P;
		long u,v;
		cin>>P>>u>>v;
		if(P=='-')break;
		t0+=M_PI/2;
	}
	long double lt=t0-M_PI/2,rt=t0+M_PI/2;
	for(int i=0;i<120;i++)
	{
		long double t1=(lt+lt+rt)/3,t2=(lt+rt+rt)/3;
		cout<<"1 "<<0.5*cos(t1)<<" "<<0.5*sin(t1)<<endl;
		char P1;
		long u1,v1;
		cin>>P1>>u1>>v1;
		if(P1=='-')u1=-u1;
		cout<<"1 "<<0.5*cos(t2)<<" "<<0.5*sin(t2)<<endl;
		char P2;
		long u2,v2;
		cin>>P2>>u2>>v2;
		if(P2=='-')u2=-u2;
		if((__int128)u1*v2<(__int128)u2*v1)rt=t2;
		else lt=t1;
	}
	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;
}