Task: Program Execution
Input (English): l 419 5993 b 7595 g j 4437 q k q w 2835 7121 u i c 3827 r v 8025 653 f 2507 p o 6669 2295 p 787 7089 g z 1163 5881 z 8335
Output (English): b, c, f, g, i, j, k, l, o, p, q, r, u, v, w, z