Task: Program Execution
Input (English): s 4767 f C n o 465 8173 e 787 9529 4709 m f 7477 4337 1625 u E 1397 2735 U s 9319 I T 3511 3913 A u w c 171 E
Output (English): 2, 7, 8, 10, 11, 12, 15, 16, 17, 20, 21, 24, 27, 28, 33