Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to use gym equipment [title] Look for instructions. [step] Most machines have a short set of instructions and illustration affixed to them. [title] Find the adjustments.

Ending1: [step] The machines' seats and benches adjust to the height of the user, and you can adjust moving parts to accommodate your leg or arm length. [title] Adjust the machine so your joints line up with the pivot points of the machines, your legs (if sitting) are flat on the floor, and the pads rest comfortably against your limbs. Ending2: [step] Generally, machines will require that you shift your leg every 30 seconds depending on the number of repetitions you do. Check your machine to ensure that you have the correct set of adjustments. Ending3: [step] Depending on what is displayed, most machines have a fixed variety of adjustment settings, ranging from manual machine adjustments to hardware issues at peak hour. Find the controls to adjust the machine's movements. Ending4: [step] For instance, if you plan on doing carpal tunnel, you will usually refer to the instruction manual to know how to adjust a chest push-up, weight shift, and barbell. If you plan on working a bench, there should also be a menu or screen that will explain how to adjust a desk bench.

Answer format: ending1/ending2/ending3/ending4