Task: Program Execution
Input (English): MDMCPLgCzBuRwNMJYAEGNQFAft, YNmjqFZuKAUZBRLgCzBuRwNMJYAEDT
Output (English): a, b, c, d, e, f, g, j, k, l, m, n, q, r, t, u, w, y, z