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:
adam earned 9 dollars for each lawn he mowed . if he had 12 lawns to mow but forgot to mow 8 of them how much money did he actually earn ?

Ex Output:
36

Ex Input:
there are 820 blocks in bridget 's block collection . if the blocks are organized into 82 groups how big is each group ?

Ex Output:
10

Ex Input:
christian 's mother prepared lemonade . every pitcher of lemonade can serve 5 glasses . if she was able to serve 30 glasses of lemonade how many pitchers of lemonade did she prepare ?

Ex Output:
6