Detailed Instructions: 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: Harry Hound had a terrible earache yesterday . When I peered into his ears yesterday , I found 36 frisky fleas having a party in his right ear and 85 baby fleas sleeping peacefully in his left ear . I cleaned out Harry Hound 's ears . How many fleas perished ?
A:
121