common common channel length?
You actually have THREE limbs. (*grin*) I'm guessing that your alimentary limb (the one that carries food from your stomach) is 175, and your common channel---the last limb, the one where 'normal' absorption occurs---is 125. You also have a bilio-pancreatic limb that carries bile down to the common channel, and it's usually about 60% of your original total small intestine.
You really should get a copy of your surgical report and keep it in a safe place.