Please choose the correct solution to the question: To cut the ceiling for a club house made out of cardboard.

Solution1: I use another cardboard to cut out the roof plate. If you don't have a wide enough piece of cardboard, then just glue several parts together.

Solution2: I use another cardboard to cut out the roof plate. If you don't have a wide enough piece of cardboard, then just glue several parts of paper together.

Answer format: solution1/solution2
Answer: solution1