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

class Fraction
{
    int numer, denom;
public:
    Fraction(int n = 0, int d = 1) : numer(n), denom(d)
    {
        cout << "Fraction " << this << " created" << endl;
        if (d == 0)
            throw(string("Error:  denominator = 0"));
    }

    ~Fraction()
    {
        cout << "~Fraction " << this << " destroyed" << endl;
    }

    friend ostream& operator<<(ostream& o, const Fraction& f)
    {
        return (o << f.numer << '/' << f.denom);
    }
};

int main()
{
    int i1, i2;

    cout << "Enter two ints => ";
    cin >> i1 >> i2;
    try
    {
        Fraction f(i1,i2);
        cout << f << endl;
    }
    catch (const string& errmsg)
    {
        cerr << errmsg <<endl;
    }
    cout << "*** End of Program ***\n";
}