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:
a lawn care company bought 4 lawnmower blade for $ 8 each . they also bought a spool of weed eater string for $ 7 . how much money did they spend on supplies ?

Ex Output:
39


Ex Input:
carol was helping her mom plant vegetables in the garden . together they planted 6 rows of potatoes with 9 seeds in each row . how many potatoes did they plant total ?

Ex Output:
54


Ex Input:
susie 's mother collected all family pictures and wanted to place all of them in an album . if an album can contain 20 pictures how many albums will she need if there are 480 pictures ?

Ex Output:

24