Task: Program Execution
Input (English): sJkATFNrtxttdZqKciyIZVxnfb, dPcUgArtxttdZqKciyIZVRMHhNduPq
Output (English): a, c, d, g, h, i, k, m, n, p, q, r, t, u, v, x, y, z