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.

Input: Consider Input: emily owned 6 songs by her favorite artists . later on she bought 7 more songs . how many songs did she have totaled ?

Output: 13

Input: Consider Input: catherine has 18 bottle caps and 19 blocks . if she shares the bottle caps among 6 friends how many bottle caps does each friend get ?

Output: 3

Input: Consider Input: when she came back to her mother she returned $ 27 worth of change . from the initial $ 100 that her mom gave her how much money in total did she spend on buying groceries ?
Output: 73