Task: Program Execution
Input (English): vgPAcPrMqoQxthRQaFVqFfKzqzjpIAcEE, uwNpKICDDHwxoQxthRQaFVqFWnvUSIjimsX
Output (English): a, c, d, f, h, i, j, k, m, n, o, p, q, r, s, t, u, v, w, x