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.

Ex Input:
jenny was told to clean up her room in 14 days or she could not go to her best friend 's birthday party . it is 3 days left but jenny has cleaned up her room . how many days did she spend ?

Ex Output:
11

Ex Input:
jerry had to sell boxes of candy . he started out with 10 boxes and then sold 5 how many boxes did he have left ?

Ex Output:
5

Ex Input:
sam was playing basketball with his friend . sam scored 75 points and his friend scored 12 points . how many points did they score total ?

Ex Output:
87