Accounts Payable had a balance of $18,310 at the beginning of the month. During the month, three debits in the amounts of $4,590, $11,190, and $14,690 were posted to Accounts Payable, and three credits in the amounts of $3,710, $9,610, and $12,810 were posted to Accounts Payable. What is the ending balance of the Accounts Payable account?