Task: Program Execution
Input (English): sEBXYRlwKiyekDYOPtxTphysSJigECVw, wWLSaNRRlwKiyekDYOPtxROScKlhIXUwI
Output (English): a, c, d, e, h, i, k, l, n, o, p, r, s, t, u, w, x, y