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.

Example Input: Lucy has an aquarium with 212 fish . Lucy wants to buy 68 more fish . How many fish would Lucy have then ?
Example Output: 280

Example Input: Mary has 9 yellow marbles Joan has 3 yellow marbles . How many yellow marbles do they have in all ?
Example Output: 12

Example Input: Sara had 21 quarters in her bank . Her dad gave her 49 quarters . How many quarters does she have now ?
Example Output:
70