public void Run(PrimitiveCalculator calculator)
{
string input = "";
while ((input = Console.ReadLine()) != "End")
{
string[] tokens = input.Split().ToArray();
string command = tokens[0];
if (command == "mode")
{
char @operator = char.Parse(tokens[1]);
IStrategy strategyToChange = FindStrategy(@operator);
calculator.changeStrategy(strategyToChange);
}
else
{
int numberOne = int.Parse(command);
int numberTwo = int.Parse(tokens[1]);
Console.WriteLine(calculator.performCalculation(numberOne, numberTwo));
}
}
}
