A $28-$ft simple span beam supports a factored total uniform load, including self$-$weight, of $2$ kip$/$ft$.$ The beam has odd bracing, such that it is braced at both ends as well as at $4$ ft from one end and $8$ ft from the other end. Identify the ultimate moment and corresponding exact Cb that would be used to evaluate$/$design each unbraced length of the beam. There is no need to select a W$-$shape and evaluate it$.$