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:
A pet store had 102 puppies . In one day they sold 21 of them and put the rest into cages with 9 in each cage . How many cages did they use ?

Ex Output:
9

Ex Input:
Rachel was unboxing some of her old winter clothes . She found 7 boxes of clothing and inside each box there were 3 scarves and 4 mittens . How many pieces of winter clothing did Rachel have total ?

Ex Output:
49

Ex Input:
There are 7 dogwood trees currently in the park . Park workers will plant 3 more dogwood trees today and 2 more dogwood trees tomorrow . How many dogwood trees will the park have when the workers are finished ?

Ex Output:
12