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 magician was selling magic card decks for 5 dollars each . If he started with 14 decks and by the end of the day he had 5 left , how much money did he earn ?

Ex Output:
45


Ex Input:
What is 80 % of 40 ?

Ex Output:
32


Ex Input:
Sam was collecting cans for recycling . On Saturday he filled 4 bags up and on Sunday he filled 3 more bags . If each bag had 6 cans in it , how many cans did he pick up total ?

Ex Output:

42