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

Q: Anne weighs 67 pounds . Douglas weighs 52 pounds . How much heavier is Anne than Douglas ?

A: 15
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Q: If Stephanie ran for 3 hours at 5 miles per hour . How far did Stephanie go ?

A: 15
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Q: Students at Arcadia schools are participating in a coat drive . 9437 coats have been collected so far . 6922 coats were collected from the high schools , and the rest from the elementary schools . How many coats were collected at the elementary schools ?

A:
2515
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