public void Run()
{
length = InputOutput.CollectDouble("length");
width = InputOutput.CollectDouble("width");
CalculateArea();
InputOutput.OutputResult("area", result);
CalculatePerimeter();
InputOutput.OutputResult("perimeter", result);
width = InputOutput.CollectDouble("length");
CalculateArea();
InputOutput.OutputResult(result, "area");
CalculatePerimeter();
InputOutput.OutputResult(result, "perimeter");
}