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