public class CurrencyManipulator {
    private String currencyCode;
    public static Map<Integer, Integer> denominations = new HashMap<>();
    public String getCurrencyCode() {
        return currencyCode;
    }
    public CurrencyManipulator(String currencyCode) {
        this.currencyCode = currencyCode;
    }
    public void addAmount(int denomination, int count) {
        if (denominations.containsKey(denomination)) {
            denominations.put(denomination, denominations.get(denomination) + count);
        } else {
            denominations.put(denomination, count);
        }
    }
}