Task: Program Execution
Input (English): x q j w 9569 g j 3997 g i 3037 f u t 2079 x y 9357 z y 2057 e 4499 t 3191 b d y v n 2965 a 1769 6547
Output (English): a, b, d, e, f, g, i, j, n, q, t, u, v, w, x, y, z