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 Q]: Lucy has an aquarium with 212 fish . She wants to buy 68 more fish . How many fish would Lucy have then ?
[EX A]: 280

[EX Q]: Joan had 695 Pokemon cards , and 6 were torn . Sara bought 133 of Joan 's Pokemon cards . How many Pokemon cards does Joan have now ?
[EX A]: 562

[EX Q]: There are 4 walnut trees currently in the park . Park workers will plant 6 walnut trees today . How many walnut trees will the park have when the workers are finished ?
[EX A]:
10