Task: Program Execution
Input (English): Y 5173 9205 l 6451 W b 9947 j t Z W g 1231 r 1431 l 7955 3725 K 6935 2373 L 7737 5541
Output (English): 2, 3, 5, 8, 14, 16, 18, 19, 21, 22, 24, 25