TJ electronics sells a particular brand of a dishwasher that they purchase from a supplier at R4000 each. The price excludes carriage of R1000 each. On 01 January 2021 there was an inventory of 30 dishwashers. A further 120 unit were purchased during January 2021. During January 2021 100 dishwashers were sold at R8000 each. What was the value of closing inventory on 31 January 2021, if the specific identification method of valuing inventories is used?