Task: Program Execution
Input (English): KCqtpwYvZkGwGTanvNbrdtVSRCR, BngBoJlvDwYvZkGwGTanvNbrleaILhuDdBZD
Output (English): a, b, d, e, g, h, i, j, k, l, n, o, r, t, u, v, w, y, z