You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
For a birthday party George bought 10 regular sodas and 22 diet sodas . If his fridge would only hold 4 on each shelf , how many shelves would he fill up ?

Ex Output:
8


Ex Input:
Katie baked 18 cupcakes for her school 's bake sale . If her brother , Todd , ate 8 of them how many packages could she make if she put 2 cupcake in each package ?

Ex Output:
5


Ex Input:
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 ?

Ex Output:

4