#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
using namespace std;

struct Tor{
    double R, r;
} Tor_info;
int main()
{
cout<<"Enter R, please ";
cin >>Tor_info.R;
cout<<endl;
cout<<"Enter r, please ";
cin >>Tor_info.r;
cout<<endl;
double S=4*(M_PI)*(M_PI)*Tor_info.R*Tor_info.r;
cout<<"S of Tor = "<< S << endl<<endl;
double V=2*(M_PI)*(M_PI)*Tor_info.R*Tor_info.r*Tor_info.r;
cout<<"V of Tor = "<< V << endl<< endl;
system("pause");
return 0;
}