Accounts Payable had a balance of $18,380 at the beginning of the month. During the month, three debits in the amounts of $4,520, $11,120, and $14,620 were posted to Accounts Payable, and three credits in the amounts of $3,780, $9,680, and $12,880 were posted to Accounts Payable. What is the ending balance of the Accounts Payable account?