#include<iostream>//chengdacaizi 08.11.12

 #include<iomanip>

 #define p 3.1415927

 using namespace std;

 int main()

 {

     int num=;

     double getdistance(double , int );

     double getspeed(double , double );

     double diameter;

     int revolutions;

     double time;

         double distance;

     double speed;

     while(){

     cin>>diameter>>revolutions>>time;

     if(revolutions==)

         break;

     distance = getdistance(diameter,revolutions);

     speed = getspeed(distance,time);

     cout<<"Trip #"<<num<<": "<<setiosflags(ios::fixed)<<setprecision()<<distance<<" "<<speed<<endl;

     num++;

     }

     return ;

 }

 double getdistance(double diameter,int revolution)

 {

    diameter/=;

    diameter*=p;

    diameter*=revolution;

    return diameter;

 }

 double getspeed(double distance, double time)

 {

     return distance/time*;

 }