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

double mph2mtrpsec(double mph);
double f2c(double temp);
double c2f(double temp);
double windchill(double speed,double temp);

int main()
{
  double wspeed,temp;

  while(1){
    cout << "What is the wind speed?";
    cin >> wspeed;
    if ( wspeed == 0.0 ) break;
    cout << "and what is the temperature?";
    cin >> temp;
    cout << "At that wind speed and that temperature, the chill factor is ";
    cout.setf(ios::fixed);
    cout.setf(ios::showpoint);
    cout.precision(1);
    cout << c2f(windchill(mph2mtrpsec(wspeed),f2c(temp))) << endl;
  }
  return 0;
}

double mph2mtrpsec(double mph){
  return (mph * 0.44704);
}

double f2c(double temp){
  return ((temp-32.0)*5.0/9.0);
}

double c2f(double temp){
  return (temp*9.0/5.0 + 32.0);
}

double windchill(double speed,double t){
  return (33.0 - ((10*sqrt(speed) - speed + 10.5) * (33.0 - t))/23.1);
}