Task: Program Execution
Input (English): odYaSpPTdOoXcXQRGOYTEkCpPCIR, HFBRmbNEWzlbrOoXcXQRGOYTEkEICgimH
Output (English): b, c, e, f, g, h, i, k, l, m, n, o, q, r, t, w, x, y, z