Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do a frontflip (beginners ) [title] Stretch first. [step] No matter what gymnastics move you're doing, you need to stretch first. You should at least stretch your ankles, hamstrings, neck, and wrists.

Ending1: [substeps] To stretch your ankles, sit down on the floor. Prop one ankle up on the other knee, and rotate it in a circle a few times. Ending2: Grab a padded towel or a yoga mat and rub the muscles of your legs and feet with it. Then squeeze the towel against your body and try to reposition your feet. Ending3: As you focus on landing, stretch deeply without being too forceful. Give your body enough time to rest, and then move on to your next move. Ending4: [substeps] If you've never done a frontflip, then it is important to stretch the top of your head first. This will give you some cushioning and increase the amount of shock your body will receive.

Answer format: ending1/ending2/ending3/ending4