$[4$ pts$]$ The computers A$,$ B$,$ C$,$ D$,$ E$,$ F are to be connected in the following

manner.

Assume two configurations to connect the computers are

equivalent if the connections $($edges$)$ are the same. How many

different ways to connect the $6$ computers? Answer as an

expression; final answer is not needed. You can type the

expression as in $\frac{C}{C}++$ language.