#include<iostream>
#include<stdlib.h>
using namespace std;


int main()
{
	int product, quantity;
	float total = 0, price;


	cout << "Enter product number and quantity sold (0 to stop): ";
	cin >> product;


	if (product == 0)
		return 0;
	cin >> quantity;


	while (true)
	{
		switch (product)
		{
		case 1:
			price = 2.98;
			break;
		case 2:
			price = 4.50;
			break;
		case 3:
			price = 9.98;
			break;
		case 4:
			price = 4.49;
			break;
		case 5:
			price = 6.87;
			break;
		default:
			cout << "Invalid product number" << endl;;
			price = 0;
		}


		total = total + (price*quantity);
		cout << "Enter product number and quantity sold (0 to stop): ";
		cin >> product;
		if (product == 0)
			break;
		cin >> quantity;
	}
	cout << "Total price: " << total << endl;
}