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:
A pet store has 6 bird cages . If each cage has 6 parrots and 2 parakeets in it , how many birds does the pet store have total ?

Ex Output:
48


Ex Input:
The Montoya family spends 0.6 their budget on groceries and another 0.2 going out to eat . Altogether , what fraction of their budget does the Montoya family spend on food ?

Ex Output:
0.8


Ex Input:
Jason has 18 books and he has read 9 of them . Mary has 42 books . How many books do they have together ?

Ex Output:

60