class Temperature {
  function : Main(args : String[]) ~ Nil {
    k := System.IO.Console->ReadString()->ToFloat();
    c := KelvinToCelsius(k);
    f := KelvinToFahrenheit(k);
    r := KelvinToRankine(k);

    "K: {$k}"->PrintLine();
    "C: {$c}"->PrintLine();
    "F: {$f}"->PrintLine();
    "R: {$r}"->PrintLine();
  }

  function : KelvinToCelsius(k : Float) ~ Float {
    return k - 273.15;
  }

  function : KelvinToFahrenheit(k : Float) ~ Float {
    return k * 1.8 - 459.67;
  }

  function : KelvinToRankine(k : Float) ~ Float {
    return k * 1.8;
  }
}