Task: Program Execution
Input (English): YympiHJFxaWizQBRAouLDLUbqtbjTilgpemS, kgFCBRAouLDLUbqtbjIzUxWwecxHqa
Output (English): a, b, d, e, f, g, h, i, j, l, m, o, p, q, r, s, t, u, w, x, y, z