Task: Program Execution
Input (English): O 8073 G 2553 O 2669 6555 a 2717 f w A k 1369 6013 8705 Z 6049 E 2575 H M O 5947 E W 9321 K 1097 8749 A l 1623 K V 5897 A 7177 4373 c
Output (English): 2, 4, 6, 7, 9, 14, 15, 16, 18, 20, 24, 27, 29, 30, 33, 36, 38, 39