You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
Harry starts with 79 apples . He buys 5 more . How many apples does Harry end with ?

Ex Output:
84


Ex Input:
Zach scored 42 points in the football game . Ben scored 21 points . How many more points did Zach score ?

Ex Output:
21


Ex Input:
Scarlett made a fruit salad with 0.25 pound of melon and 0.375 pound of berries . How many pounds of fruit did Scarlett use in all ?

Ex Output:

0.625