@Override
    public String toString() {
        List<Integer> accountLevels = new ArrayList<>();
        List<String> accountIds = new ArrayList<>();

        for (SelectedHierarchyLevel selectedHierarchyLevel : selectedHierarchyLevels) {
            accountLevels.add(selectedHierarchyLevel.getLevel());
            accountIds.add(selectedHierarchyLevel.getAccountRowId());
        }

        vetoAreValidIds(accountIds);
        StringBuilder converterString = new StringBuilder();

        convert(accountLevels, converterString);
        converterString.append("$");
        convert(accountIds, converterString);

        return converterString.toString();
    }