Task: Program Execution
Input (English): WfYIWRoMbssWUPzkiMSkiqNTG, MYKKXfBgOuYIWRoMbssWUPzkdrqYmAAWxF
Output (English): a, b, d, f, g, i, k, m, o, p, q, r, s, u, w, x, y, z