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.
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Question: Lana was unboxing some of her old winter clothes . She found 3 boxes of clothing and inside each box there were 3 scarves and 4 mittens . How many pieces of winter clothing did Lana have total ?

Answer: 21

Question: While making desserts for a bake sale , Victor used 0.625 scoop of brown sugar as well as 0.25 scoop of white sugar . How much more brown sugar did Victor use ?

Answer: 0.375

Question: There are 33 walnut trees currently in the park . Park workers will plant 44 more walnut trees today . How many walnut trees will the park have when the workers are finished ?

Answer:
77