Task: Program Execution
Input (English): PKrugtpwdcOiohrWfgtIsD, hnufIZzOqeFtpwdcOiohrWfbYqVjXWHsdA
Output (English): a, b, c, d, e, f, h, i, j, n, o, p, q, r, s, t, u, v, w, x, y, z