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 store had 34 oranges in a bin . If they threw away 20 of the old ones and put 13 new ones in the bin how many would be in the bin ?

Ex Output:
27


Ex Input:
There are 24 bicycles and 14 tricycles in the storage area at Danny 's apartment building . Each bicycle has 2 wheels and each tricycle has 3 wheels . How many wheels are there in all ?

Ex Output:
90


Ex Input:
Find the product of -2 , -15 , 4 and -1 .

Ex Output:

-120