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

Ex Input:
Sara goes fishing with Melanie . Sara catches 5 trout . Melanie catches 2 times as many trout as Sara . How many trout did Melanie catch ?

Ex Output:
10


Ex Input:
Upon arriving at the circus , they went to the ticket booth and asked how much each ticket cost . If each ticket costs 44 dollars and they bought 7 tickets , how much money did they spend on tickets ?

Ex Output:
308


Ex Input:
I have 648 pencils . If I put 4 pencils in each pencil box , how many pencil boxes will I fill ?

Ex Output:

162