Zigs Industries had the following operating results for 2015: sales = $27771; cost of goods sold = $16963; depreciation expense = $4324; interest expense = $2068; dividends paid = $1788. At the beginning of the year, net fixed assets were $15810, current assets were $5248, and current liabilities were $3969. At the end of the year, net fixed assets were $20724, current assets were $7634, and current liabilities were $3580. The tax rate for 2015 was 34 percent. What is operating cash flow (OCF) for 2015?