Task: Program Execution
Input (English): zSoQPbQJuKlcYzbNaWXwXeNQusCRSB, GZaBAkueEepQJuKlcYzbNaWDHRP
Output (English): a, b, c, e, j, k, l, n, o, p, q, r, s, u, w, x, y, z