What is the 4 for 4 deal at Steak and Shake?

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Tags

1. #customers
2. #cookie
3. #fries
4. #shake
5. #additional
6. #choose
7. #offered
8. #under
9. #applesauce
10. #chili
11. #items
12. #cheeseburger
13. #steak
14. #which
15. #promotion