#include <iostream>
#include <stdlib.h>

using namespace std;

double safedivide(int top, int bottom) throw (int)
{
  if (bottom == 0) throw top;
  return top / static_cast<double>(bottom);
}

main()
{
  int donuts, milk;
  double dpg;

  cout << "Enter number of donuts:\n";
  cin >> donuts;
  cout << "Enter number ofglasses of milk:\n";
  cin >> milk;

  try {
    dpg = safedivide(donuts, milk);
  }
  catch(int e) 
  {
    cout << e << " donuts. and No Milk!\n"
         << "Go buy some milk.\n";
    exit(0);
  } 

  cout << donuts << " donuts.\n" 
       << milk << " glasses of milk.\n"
       << "You have " << dpg << " donuts for each glass of milk.\n";
}