Martha contributed fully depreciated, zero $($$$0)$ basis property valued at $$16,000$ to the MB Partnership in exchange for a $50\%$ interest in partnership capital and profits. During the first year of partnership operations, MB had net taxable income of $$5,000$ and tax$-$exempt income of $$6,000.$ The partnership distributed $$4,000$ cash to Martha. Her share of partnership recourse liabilities on the last day of the partnership year was $$1,500.$ Martha's adjusted basis for her partnership interest at year end is: