The balance in Accounts Receivable at the beginning of the period amounted to $2,100. During the period $6,500 of credit sales were made to customers, and uncollectible accounts expense amounted to $410. The ending balance in Accounts Receivable is $1,100, and the ending balance in the uncollectibles allowance account is $600. The amount of cash inflow from customers that would appear in the operating section of the statement of cash flows is