学步园

#include<iostream>
#include <iomanip>
using namespace std;

int main(){
	const float pi = 3.1415927;
	float diameter_inch;
	int circle;
	float time_sec;
	int count = 1;
	while(cin>>diameter_inch>>circle>>time_sec && circle != 0){
		float distance;
		float time_hour;
		float speed;
		distance = pi * diameter_inch * circle / 5280 / 12;
		time_hour = time_sec / 3600;
		speed = distance / time_hour;
		cout<<"Trip #"<<count++<<": ";
		cout<<fixed<<setprecision(2)<<distance<<" "<<speed<<endl;
	}
}