Task: Program Execution
Input (English): JBeLkQfpwdyLsSIlRIVcYUaIWhP, awGKxzEfKvALsSIlRIVcYUaXVwNXOk
Output (English): a, c, e, f, g, i, k, l, n, o, r, s, u, v, w, x, y, z