Task: Program Execution
Input (English): 9947 1325 5241 P K L 1601 I 2145 1215 Y K d 2085 9789 6183 O 2505 F m 2951 7911 2111 K 659 4137 W 1521 91 A 431 1095 7907 6255 a 8775 g c V 2395
Output (English): 4, 5, 6, 8, 11, 12, 13, 17, 19, 20, 24, 27, 30, 35, 37, 38, 39