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

Ex Input:
At the town carnival Billy rode the ferris wheel 7 times and the bumper cars 3 times . If each ride cost 5 tickets , how many tickets did he use ?

Ex Output:
50

Ex Input:
I have a pet golden retriever . Each year he gains 11 pounds . He is 8 years old . How many pounds does he weigh ?

Ex Output:
88

Ex Input:
The first act included 5 clown mobiles , each stuffed with 28 clowns . How many clowns are inside all the clown mobiles combined ?

Ex Output:
140