You are given a math word problem and you are supposed to apply a single mathematical operator 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:
there are 5 flowers and 3 bees . what 's the difference of the number of flowers and bees over there ?

Ex Output:
2

Ex Input:
there are 28 students in mrs. riley 's class but she only has 19 pencils . how many more pencils does mrs. riley need ?

Ex Output:
9

Ex Input:
they entered the circus tent and saw that there are 4 seating sections for the audience . if each section can accommodate 246 people how many people can the tent accommodate in total ?

Ex Output:
984