Task: Program Execution
Input (English): rHFHiPdtVKVrJtcqBvWv, lqJwxLxMyEFHiPdtVKVrJtTTNeIAHMOK
Output (English): a, d, e, f, h, i, j, k, l, m, n, o, p, q, r, t, v, w, x, y