static void VATCalc()
{
double sum = SuperCalc.ReceiveNumber();
const double TAX = 0.17;
SuperCalc.SumOutput((decimal)SuperCalc.Calculate(sum, TAX, "*"));
}
static void SimpleMath()
{
double firsNumber, secondNumber, result;
string mathOp, output;
firsNumber = SuperCalc.ReceiveNumber();
mathOp = SuperCalc.ReceiveSign();
secondNumber = SuperCalc.ReceiveNumber();
result = SuperCalc.Calculate(firsNumber, secondNumber, mathOp);
output = String.Format("{0} {1} {2} = {3}\n", firsNumber, mathOp, secondNumber, result);
Console.WriteLine(output);
}
