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

At the fair there were 9 people in line for the bumper cars . If 6 of them got tired of waiting and left and 3 more got in line , how many people would be in line ?
6

Mika had 20 stickers . She bought 26 stickers from a store in the mall and got 20 stickers for her birthday . Then Mika gave 6 of the stickers to her sister and used 58 to decorate a greeting card . How many stickers does Mika have left ?
2

A pet supply store has 600 bags of dog food and 327 bags of cat food . How many more bags of dog food are there than cat food ?

273