#include <iostream>
#include <exception>
using namespace std;

//Variables
float num1;
float num2;
char procedure;

int main()
{
	try
	{
		cout << "Please enter in a computation: ";
		cin >> num1 >> procedure >> num2;

		if (procedure == '+')
		{
			cout << (num1 + num2);
		}
		else if (procedure == '-')
		{
			cout << (num1 - num2);
		}
		else if (procedure == '*')
		{
			cout << (num1 * num2);
		}
		else if (procedure == '/')
		{
			cout << (num1 / num2);
		}
		else throw procedure;

	}
	catch (char result)
	{
		cout << "Operation Error: " << result << " is not a valid operator" << endl;
	}

	system("pause");
	return 0;
}