Task: Program Execution
Input (English): fKFLybBbtcEhkjARPrAGkZOZNIrxbi, WQYvDSjERaEkjARPrAGkZOZNIzmzJYljSS
Output (English): a, d, e, g, i, j, k, l, m, n, o, p, q, r, s, v, w, y, z