Santos Co. is preparing a cash budget for February. The company has $10,000 cash at the beginning of February and anticipates $66,000 in cash receipts and $105,000 in cash disbursements during February. What amount, if any, must the company borrow during February to maintain a $6,000 cash balance? The company has no loans outstanding on February 1. (Negative cash balances, if any, should be indicated with minus sign.)