You could, in theory, have 136 one year sentences to be served concurrently. I'm not saying this will be the case, but not every sentence is served sequentially.

Also, life imprisonment is a single sentence that means the rest of your life in jail, or until paroled. I believe you can have a life sentence and other fixed term sentences too. You can also have a total of 136 years in jail (no concurrent sentences) which is effectively the same thing as a life sentence.

Let's say you're sentenced to 125 years in prison, but they're five 25 year concurrent prison terms. The most you'll spend in prison is 25 years, and that includes the time you've already spent.