Please choose the correct solution to the question: How to insert plastic triangles into brass rod.

Solution1: Hold plastic rod with one hand and stick the hole from the plastic triangle into the rod. Keep doing this until all triangles are on the rod.

Solution2: Hold brass rod with one hand and stick the hole from the plastic triangle into the rod. Keep doing this until all triangles are on the rod.

Answer format: solution1/solution2
Answer: solution2