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.

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 ?
11