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:
martha bought 18 small cakes . she has 3 children . she would like to divide the cakes among her children so that each child gets the same amount . how many cakes would each child get ?

Ex Output:
6


Ex Input:
he also had 8 aquariums for saltwater animals . each aquarium has 64 animals in it . how many saltwater animals does tyler have ?

Ex Output:
512


Ex Input:
will had 28 bottles of water . if he drank 7 each day how many days would they last him ?

Ex Output:

4