Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do a one handed cartwheel [title] Master the regular cartwheel. [step] Make sure that you can do a regular, two-handed cartwheel really well before moving on to the one-handed cartwheel. Practice doing cartwheels from either your right and left foot, if not both.

Ending1: This will help improve your form, and build up the arm and shoulder strength needed for one-handed cartwheels. [title] Find a good surface to practice on. Ending2: [title] Roll your middle finger along the wheel smoothly (both hands in any position). [step] Move your middle finger by drawing backward the ring finger of both hands so your pinky is hidden behind your middle finger while one hand spins the wheel hard! [title] Focus on how much of a bounce you want to have. Ending3: It's much more comfortable when you start with two feet than for both feet at once, so don't rush. Once you reach the cartwheel on your right foot, practice it for about 10-20 seconds. Ending4: If you are new to cartwheels, practice doing every move in both feet without switching hands. [title] Catch a cartwheel with your left hand.

Answer format: ending1/ending2/ending3/ending4