private void recordRun(Universe.State s, int r)
    {
        String st = "";
        if (s == Universe.State.DEAD)
            st = "b";
        else if (s == Universe.State.ALIVE)
            st = "o";
        if (st == "b" || st == "o")
            {
                if (r == 1)
                    builder.append(st);
                else
                    builder.append(r+st);
            }
    }