public override Task <CalcResponce> GetAnswer(CalcRequest request, ServerCallContext context)
{
Console.WriteLine("New request:");
IRPN manager = new RPN();
ICalculator calculator = new Calculator();
var LFK = manager.LengyelFormaKonvertalas(request.Formula);
Console.WriteLine(LFK);
var result = calculator.Calculate(LFK);
Console.WriteLine(result);
return(Task.FromResult(new CalcResponce()
{
Answer = result
}));
}