Task: Question Answering
Input (English): Dalton wants to buy a jump rope that costs $ 7 , a board game that costs $ 12 , and a playground ball that costs $ 4 . He has saved $ 6 from his allowance , and his uncle gave him $ 13 . How much more money does Dalton need to buy the jump rope , the game , and the ball ?
Output (English): 4