Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do a front aerial on the beam [title] Stretch well. [step] It's safer if you stretch for at least 10 to 15 minutes, before attempting difficult skills. [title] Practice on the floor, and along a line.

Ending1: [step] A couple of prerequisites, (things you need to be able to do first) are a front walkover on the beam/line. Also, you'll need to be comfortable doing a front aerial, on the floor and line first. Ending2: [step] Hang a chair over a partner who can sit up. [title] Walk in one direction-back to a wall and whip up your arms. Ending3: [step] Keep the beam steady and level and you will execute all the moves in " front aerial " mode. [title] Your leg muscles, arms, and upper body will all be engaged in the front aerial if you stretch first. Ending4: [step] It might hurt at first but you'll get in shape later. [title] Get your equipment, ready for the test.

Answer format: ending1/ending2/ending3/ending4