Task: Program Execution
Input (English): s, n, f, o, 2517, e, 3351, 6295, 507, e, h, 3099, w, 785, k, v, a, x, 7781, 9353, g, u, b
Output (English): a, b, e, f, g, h, k, n, o, s, u, v, w, x