Task: Program Execution
Input (English): HbeTMEaqnzRSWXlCLxnZFDvUMi, gRhIbRSWXlCLxnZFehPeKu
Output (English): a, b, c, d, e, f, h, i, l, m, n, q, r, s, t, u, v, w, x, z