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.

Example Input: he then went to see the oranges being harvested . he found out that they harvest 83 sacks per day . how many sacks of oranges will they have after 6 days of harvest ?
Example Output: 498

Example Input: before lunch a waitress had already earned $ 5 in tips . after lunch she had 7 customers and each customer gave her a 2 dollar tip . how much money did she earn total ?
Example Output: 19

Example Input: a baker made 2 batches of chocolate chip cookies . each batch had 3 cookies in it . then he made an additional 4 oatmeal cookies just in case someone did n't want chocolate chip . how many cookies did he bake total ?
Example Output:
10