Please choose the correct solution to the question: How much cardboard would I need to make a pinhole camera?

Solution1: You need to calculate the size of your box based on the dimensions of your photo paper. You can use an online pinhole camera calculator to help you. After you know the box size, you can figure out how much cardboard to use.

Solution2: You need to calculate the size of your box based on the dimensions of your photo paper. You can use an online pinhole camera calculator to help you. Before you know the box size, you can figure out how much cardboard to use.

Answer format: solution1/solution2
Answer: solution1