Task: Program Execution
Input (English): 2747 3161 1079 l K 2971 Z 9619 l 1677 a 617 4829 p l 2175 9451 7983 r 8235 351 711 8613 5407 785 2271 7373 2549 p f J 4035 c 7807 7695 9777
Output (English): 4, 5, 7, 9, 11, 14, 15, 19, 29, 30, 31, 33