Step 1: For A Day: Look at your schedule and see which teacher you have for 3rd period. For B Day: Look at your schedule and see which teacher you have for 7th period.

Step 2: Look at the list to see which lunch that teacher has.

Step 3: If your teacher is on the 1st lunch list, go to lunch after 2nd period for A days, or 6th period for B days. If they are on the 2nd lunch list, go to lunch after 3rd period for A days, or 7th period for B days.