Shoot it downed on me, he pardoned
a man at random, not a cell duhh
In addition, the King declared that he would pardon one of the three prisoners, at random, and told only the warden which cell contained that lucky man.
So if he pardoned a, whether he is in one cell or the other it does not change the outcome (even if they look exactly the same, they wear different clothes so the king might have pulled "Jo who wears a red shirt" out of the hat and happens to be in cell a.)
My vote is still "it does not matter" but the reasoning behind it changed.
I still think he should kill b LOL