Task: Program Execution
Input (English): z k j u t 799 8003 d b j c 1379 i j 7497 v w y j j 7733 715 j 1431 f 9169 8759 9229 8959 t 3303 9377 u 8217 8781 x 6453 d u 5459 119
Output (English): b, c, d, f, i, j, k, t, u, v, w, x, y, z