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:
at a restaurant each adult meal costs $ 8 and kids eat free . if a group of 11 people came in and 2 were kids how much would it cost for the group to eat ?

Ex Output:
72

Ex Input:
the sanctuary also includes several swamp areas where most of the reptiles usually reside . if there are 4 swamps each having 356 different reptiles how many reptiles are living in the swamp areas ?

Ex Output:
1424

Ex Input:
a new building needed 14 windows . the builder had already installed 5 of them . if it takes 4 hours to install each window how long will it take him to install the rest ?

Ex Output:
36