Detailed Instructions: You are given a math word problem and you are supposed to apply a single mathematical operator like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Problem:because of an upcoming exam robyn will not be able to sell cookies on tuesday . to make up for it lucy decided to do double the work to catch up . she sold 34 cookies on her first round and 27 on her second round . how many cookies were sold by lucy ?
Solution:
61