import java.io.PrintStream;

import type.lib.CreditCard;
import type.lib.GlobalCredit;
import type.lib.RewardCard;

public class PrintPointBalance
{
    public static void main(String[] args)
    {
	PrintStream output = System.out;

	GlobalCredit company = GlobalCredit.getRandom();
	int balance = 0;
	for (CreditCard card : company)
	{
	    if (card instanceof RewardCard)
	    {
		balance += ((RewardCard) card).getPointBalance();
	    }
	}
	output.printf("%d%n", balance);
    }
}