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:
Paula 's aunt gave her $ 109 to spend on clothes at the mall . She bought 2 shirts that cost $ 11 each and a pair of pants that cost $ 13 . How much money does Paula have left to buy more clothes ?

Ex Output:
74

Ex Input:
For Halloween Janet and her sister combined the candy they received . Janet had 34 pieces of candy while her sister had 33 . If they ate 4 pieces the first night , how many pieces do they have left ?

Ex Output:
63

Ex Input:
Paco 's Countertop Company purchased pieces of marble from a quarry . The weights of the pieces they purchased were 0.3333333333333333 ton , 0.3333333333333333 ton , and 0.08333333333333333 ton . How many tons of marble did Paco 's Countertop Company purchase in all ?

Ex Output:
0.75