#include"iostream"
#include"math.h"
using namespace std;
#define pi 3.14
class all
{
public:
virtual void print()=0;
virtual double MianJi()=0;
} ;
class Triangle:public all
{
public:
double x;
double y;
double z;
virtual void print();
virtual double MianJi();
};
void Triangle::print()
{
cout<<"Triangle:"<<MianJi()<<endl;
}
double Triangle::MianJi()
{
double p = ( x+ y + z) / 2.0;
return sqrt(p * ( p - x)*(p- y)*(p - z));
}
class Rectangle:public all
{
public:
double x;
double y;
virtual void print();
virtual double MianJi();
};
void Rectangle::print()
{
cout<<"Rectangle:"<<MianJi()<<endl;
}
double Rectangle::MianJi()
{
return x*y;
}
class circle:public all
{
public:
double r;
virtual void print();
virtual double MianJi();
};
void circle::print()
{
cout<<"circle:"<<MianJi()<<endl;
}
double circle::MianJi()
{
return pi*r*r;
}
void qort(all* a[100],int n)
{
int i=0,k=0;
for(i=0;i<n-1;i++)
{
for(k=i+1;k<n;k++)
{
if(a[i]->MianJi()>a[k]->MianJi())
{
all* temp;
temp=a[i];
a[i]=a[k];
a[k]=temp;
}
}
}
}
int main()
{
int n;
string s;
all* A[100];
Triangle* Tr;
Rectangle* Re;
circle* Ci;
cin>>n;
for(int i=1;i<=n;i++)
{
cin>>s;
if(s=="Triangle")
{
Tr=new Triangle();
cin>>Tr->x>>Tr->y>>Tr->z;
A[i]=Tr;
}
if(s=="Rectangle")
{
Re=new Rectangle();
cin>>Re->x>>Re->y;
A[i]=Re;
}
if(s=="circle")
{
Ci=new circle();
cin>>Ci->r;
A[i]=Ci;
}
}
}
qort(A,n);
for(int i=0;i<n;i++)
{
A[i]->print();
}
return 0;
}