The bathhouse you work at is being visited by some of the primordial beings from the pools of chaos. You have been tasked with finding out which pools they came from, so that the proper form of chaos can be made for them.
Unfortunately, the primordial ones can't speak, so you can't ask where they came from. It is also dark, making them hard to see. However, you can make out a few features of the limbs. You know that the primordial ones are symmetrical, with paired limbs divided into 4 types: legs to walk on earth, fins to steer through water, wings to fly through the air, and arms to handle fire. You also know that the number of limbs is linked to the proportion of elements in their chaos, and therefore that all primordial ones have at least one of each limb type. You also know that the position of the limbs is defined by a few rules: Legs must be in the outer thirds of the body, Fins are only found as a run at the end of the body, wings must be in the inner third of the body, and arms are only found as a run at the front of the body.
Observing the primordial ones, you see it has 30 limbs in total, with one discernible feature: a fin with 3 limbs behind. They also seem to like fire and air equally, whereas they dislike water and earth, to different degrees. What is their preferred proportions for their chaos?