Task: Program Execution
Input (English): t e 3117 6691 3371 9665 863 9517 q 7091 5415 c x k 8299 n s 9529 f 8511 1885 u z i 7061 x t g w c 6757 g 3171 279 8011 4501 t 9249 61 6513 i 2149
Output (English): c, e, f, g, i, k, n, q, s, t, u, w, x, z