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:
Jason joined his school 's band . He bought a flute for $ 142.46 , a music tool for $ 8.89 , and a song book for $ 7 . How much did Jason spend at the music store ?

Ex Output:
158.35


Ex Input:
Bianca uploaded 33 pictures to Facebook . She put 27 pics into one album and put the rest into 3 different albums . How many pictures were in each album ?

Ex Output:
2


Ex Input:
A company invited 45 people to a luncheon , but 35 of them did n't show up . If the tables they had held 2 people each , how many tables do they need ?

Ex Output:

5