Please choose the correct solution to the question: How do you know you'll need to replenish your staple supply?

Solution1: Mark one end of 20 or so staples with a red sharpie pen. Load them so that red ones will be used at the end. When your stapler starts punching red, you need to buy staples.

Solution2: Mark one end of 20 or so staples with a red sharpie pen. Load them so that red ones will be used at first. When your stapler starts punching red, you need to buy staples.

Answer format: solution1/solution2
Answer: solution1