Task: Program Execution
Input (English): CiWNTGCPeFmJHSWAZEtvBPAAZRtcdnvMfYXiQ, PUNYwFJCOZxeFmJHSWAZEtvBPXQPdRbBiCmF
Output (English): a, b, c, d, e, f, g, h, i, j, m, n, p, q, r, s, t, v, w, x, y, z