There is an infinite set generated as follows:
11 is in this set.If xx is in this set, x⋅ax⋅a and xbxb both are in this set.
For example, when a3a3 and b6b6, the five smallest elements of the set are:
11,33 (11 is in this set, so 1⋅a31⋅a3 is in this…