Task: Program Execution
Input (English): 497 l U 265 Q 9859 6801 5959 b 7941 l u m R 6289 f 2521 2741 W d 5553 H O K p 5205
Output (English): 1, 4, 6, 7, 8, 10, 15, 17, 18, 21, 26