Four-digit password lock in the gym. Forgot the password.

What should I do if I forget my password for four password locks in the gym? The processing steps of forgetting the password of the four-digit password lock in the gym are as follows:

1. First, remove the round plug under the lock column of the combination lock.

2. After taking out the round plug, straighten it with a paper clip and insert it layer by layer. The finger starts dialing from the first password dial, and after the paper clip is inserted, it is the correct password.