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

int main()
{
        int washer {0};
        cout << "How many quarters do you need for the washer? ";
        cin >> washer;

	if (!cin) {
		cerr << "Sorry, that wasn't a number.\n";
		return EXIT_FAILURE;
	}

        int dryer {0};
        cout << "How many quarters do you need for the dryer? ";
        cin >> dryer;

	if (!cin) {
		cerr << "Sorry, that wasn't a number.\n";
		return EXIT_FAILURE;
	}

	int pennies {25 * (washer + dryer)};   //total cost, in pennies
	int dollars {pennies / 100};
	int cents   {pennies % 100};

	cout << "That's " << dollars << " dollar";

	if (dollars != 1) {    //if dollars is not equal to 1
		cout << "s";   //make dollars plural
	}

	if (cents > 0) {       //if cents is greater than 0
		cout << " and change";
	}

        cout << ".\n";         //period at the end of the sentence
        return EXIT_SUCCESS;
}