Zigs Industries had the following operating results for 2015: sales = $25,638; cost of goods sold = $16,799; depreciation expense = $4,082; interest expense = $2,042; dividends paid = $1,581. At the beginning of the year, net fixed assets were $19,136, current assets were $5,395, and current liabilities were $3,497. At the end of the year, net fixed assets were $20,159, current assets were $7,182, and current liabilities were $3,648. The tax rate for 2015 was 33 percent. What is operating cash flow (OCF) for 2015?