static void Main(string[] args)
{
CalculatorServiceClient calculatorServiceClient = new CalculatorServiceClient();
for (; ;)
{
double A = double.Parse(Console.ReadLine());
double B = double.Parse(Console.ReadLine());
char O = char.Parse(Console.ReadLine());
double result = calculatorServiceClient.Calculate(A, B, O);
Console.WriteLine(string.Format("{0} {1} {2} = {3}", A, O, B, result));
}
}