HDU 1038

#include<stdio.h>
int main()
{
    float d,t,s;
    int r,i;
    i=1;
    while(scanf("%f%d%f",&d,&r,&t)&&r!=0)
    {
        s=3.1415927*d*r/5280/12;
        printf("Trip #%d: %.2f %.2f\n",i++,s,s*3600/t);
    }
}